top of page

SIM Swap Attacks - What Are They, And How You Can Avoid Them


I'm going to promise you an alternative to even having one iota of worry about SIM swap attacks. Keep reading and you will learn the basic things you can do to ensure you are never attacked. If you do as I suggest in this comprehensive guide, you won't need to worry. Simple. But learn more about SIM swap attacks and how they are orchestrated in order to motivate you to doing something about prventing a SIM attack.

sim card on a hook SIM swap attacks
SIM swap attacks can ruin you. I will give you the best practices if you keep reading.

In today's digitized environment, securing personal data is not just vital; it is imperative. As the web of connectivity extends its reach, it brings with it an array of threats, and one such dark underbelly of this interconnected sphere is the exponential rise of SIM swap attacks. These attacks not only threaten your digital peace but are geared to seize your sensitive data in a blink. But fear not; by adopting a conscious approach, one can indeed fortify oneself against these unseen attackers. In this detailed insight, we will dissect what SIM swap attacks entail and equip you with a shield of knowledge and strategies to guard yourself against these digital predators.

Understanding SIM Swap Attacks

Before we dive deep into the protective measures, let’s lay down the foundational understanding of SIM swap attacks. This attack happens when a hacker cunningly maneuvers to take control of your phone number by convincing your mobile service provider to switch your current number to a new SIM card under their control. Once the perpetrator succeeds, it opens a Pandora’s box for them, allowing a free hand in bypassing securities like two-factor authentication and seizing control of your emails, bank accounts, and a plethora of other sensitive data.

Real-Life Instances of SIM Swap Attacks: A Glimpse into the World of Digital Piracy

SIM swap attacks are not just a fictional threat from a cyberpunk novel; they are a very real and present danger in today's digital landscape. Below we highlight a few cases that shook individuals and organizations, painting a clear picture of the havoc such attacks can wreak.

Case 1: The Twitter Bitcoin Scam of 2020

In one of the most high-profile SIM swap attacks in recent history, a 17-year-old hacker managed to gain access to Twitter's internal systems in 2020. The hacker, along with other accomplices, took control of several verified accounts, including those of Elon Musk, Barack Obama, and Joe Biden, to perpetrate a Bitcoin scam, encouraging followers to send Bitcoin to a specified address with the promise of doubling their money. While the scam itself was not a SIM swap attack, it is believed that the initial access was gained through a SIM swap attack that allowed the perpetrators to take control of a Twitter employee's account.

This instance highlights the devastating potential of SIM swap attacks and the level of access that can be achieved through them.

Case 2: The Case of Michael Terpin

Michael Terpin, a serial entrepreneur and cryptocurrency investor, became a victim of SIM swap attacks not once but twice. In 2018, Terpin experienced a SIM swap attack where hackers took control of his phone number, gaining access to his cryptocurrency wallets and siphoning off tokens worth $24 million. Following the attack, Terpin sued his mobile carrier, AT&T, alleging that the provider failed to provide adequate security measures, consequently winning a $75.8 million judgment in his favor.

This case brought to light the pressing need for mobile carriers to bolster their security to protect customers from such devastating attacks.

Case 3: A Brazilian Banking Trojan Attack

In 2020, Brazil witnessed a sophisticated attack where cybercriminals utilized a banking Trojan to target banking customers. The attackers initiated SIM swap attacks to bypass two-factor authentication measures implemented by banks. This orchestrated attack led to substantial financial losses for numerous individuals, unveiling the gaping holes in the security measures employed by financial institutions and the urgent need for fortified security layers to counter such attacks.

Case 4: Reddit’s Co-founder, Spear Phishing Attack

In a transparent revelation on Twitter, Reddit's co-founder Alexis Ohanian shared his experience of being targeted in a spear phishing attack that set the stage for a SIM swap. Though the attempt was thwarted before any significant damage could be done, it highlighted that even tech-savvy individuals and high-profile personalities are not immune to such advanced targeted attacks.

Case 5: The Case of a Californian Teenager

In 2019, a Californian teenager orchestrated a series of SIM swap attacks targeting high-profile individuals, primarily in the cryptocurrency space. This individual managed to steal over $35 million in cryptocurrency by exploiting the weaknesses in mobile carrier systems. It exhibited the alarming proficiency and technical acumen possessed by modern-day hackers, demonstrating that even individuals with seemingly robust security measures can fall prey to these meticulously planned attacks.

Summarizing These SIM Attacks

These real-life instances of SIM swap attacks paint a grim picture of the digital world we inhabit. From high-profile personalities to average individuals, SIM swap attacks can target anyone, leveraging the vulnerabilities in systems and human errors to perpetrate crimes with far-reaching consequences. It stands as a poignant reminder for individuals and organizations to remain vigilant and employ stringent security measures to safeguard against such malicious attacks in the cyber landscape.

hacker with sweatshirt over head
Hackers have a series of steps they go through to institute a SIM attack.

The Anatomy of a SIM Swap Attack

Delving into the Hacker's Playbook: A Step-by-Step Process of SIM Swap Attacks

Although there are clear similarities in the mechancics previously discussed, here we discuss the step-by-step methodology a bad actor will use. The art of hacking has evolved to incorporate a blend of social engineering, exploiting carrier vulnerabilities, and a series of orchestrated steps leading to the eventual takeover of the victim's account. Let us delve deep into the meticulous process that hackers undertake during a SIM swap attack.

Step 1: Research and Reconnaissance

Before initiating a SIM swap attack, hackers undertake a detailed research phase where they gather as much information as possible about the victim. This could involve stalking their social media profiles, forums, and even extracting data from previous data leaks. The objective is to collect sufficient details to convincingly impersonate the victim.

Step 2: Social Engineering

Armed with the gathered information, hackers employ social engineering tactics, which involve manipulating individuals into divulging confidential information. This step is critical as hackers often use persuasive techniques to deceive the customer service representatives of telecom providers, posing as the victim and requesting a SIM swap due to a myriad of fabricated reasons such as a lost phone or SIM damage.

Step 3: Leveraging Carrier Vulnerabilities

The hackers exploit vulnerabilities present in carrier services to further their agenda. This could encompass known security loopholes or potentially even bribing insiders to facilitate the SIM swap. Some hackers exploit the less stringent security measures of telecom service providers in certain regions to carry out the swap seamlessly.

Step 4: The SIM Swap

Once the service provider is convinced, the SIM swap is initiated. It involves deactivating the current SIM and activating a new SIM owned by the hacker with the victim’s phone number. This step is the pivotal point in the attack, where control of the victim’s number is transferred to the hacker, effectively isolating the victim from their mobile network.

Step 5: Overcoming Multi-Factor Authentication

Post SIM swap, hackers have a golden window of opportunity to bypass multi-factor authentication (MFA) linked to various accounts, be it email, social media, or financial accounts. Since the hacker now controls the victim's phone number, all OTPs and verification codes are routed to them, facilitating easy access to a wide array of sensitive platforms.

Step 6: Account Takeover

With the MFA hurdle surpassed, hackers now take complete control over the victim's accounts. They reset passwords, change recovery emails, and alter security questions, effectively locking the victims out of their own digital lives. In many cases, this stage sees the extraction of confidential data and, in instances involving financial platforms, unauthorized transactions and theft of funds.

Step 7: Covering Tracks

Post takeover, hackers undertake efforts to cover their tracks. They might delete notification emails regarding password changes, or even engage with the victim’s contacts to avoid suspicion. This is a strategic play to buy time, enabling them to exploit the taken-over accounts further before eventually discarding them.

In Summary

The step-by-step process involved in SIM swap attacks unveils a sophisticated, carefully crafted operation that leverages both technology and human psychology. It brings to light the critical vulnerabilities present in the digital safety nets woven by service providers and the applications we use daily. Awareness of this intricate process is the first step in building defenses against such attacks, urging users and corporations alike to foster a security-centric approach in a bid to safeguard digital assets and personal data in the interconnected world we inhabit today.

It is a clarion call for reinforced digital hygiene, urging individuals to maintain secrecy and exercise caution, while also encouraging telecom providers to beef up their security mechanisms to thwart such attacks effectively.

I promised you to explain the easy way to stop a SIM swap attack, but please be patient so all this makes sense. It's coming below...

The Escalating Threat Landscape

Recent times have witnessed a stark rise in SIM swap attacks globally, painting a grim picture of the digital landscape. Individuals from all walks of life, be it an average Joe or high-profile personnel, find themselves in the crosshairs of these attackers. The surge in these crimes can be attributed to a parallel increase in the abundance of personal data available in the public domain and the refinement in the techniques deployed by hackers.

Statistics at a Glance

In recent years, there has seen a considerable uptick in SIM swap attacks, a phenomenon where attackers hijack an individual’s phone number to take control of their personal and financial accounts. The gravity of the situation can be substantiated through various reports and statistics that paint a grim picture of this escalating threat. Let us delve into the various dimensions of this increase, backed by credible data and analysis.

Reports and Figures

A notable report from the renowned cybersecurity firm, CipherTrace, documented a sharp increase in SIM swap attacks. According to a 2020 report, there was a nearly 400% increase in such attacks compared to the previous year. This rise can be attributed to an amalgamation of sophisticated hacking techniques and the ever-increasing pool of personal data available online.

A detailed analysis by the U.S. Fair Trade Commission (FTC) also echoed similar concerns, highlighting an increasing trend in reports related to SIM swap attacks, which had surged significantly since 2019. The report further sheds light on the vulnerability of the general populace, including high-profile individuals, painting a picture of a threat landscape that is versatile and indiscriminate.

Regional Analysis

Region-specific analyses further amplify the understanding of this increasing menace. In regions like South Africa, the South African Banking Risk Information Centre (SABRIC) reported an alarming rate of such attacks, emphasizing the targeted nature of these attacks, with criminals meticulously choosing their victims and devising plans for financial gains.

Similarly, in the UK, the rise has been substantial, with the UK Finance reporting a considerable hike in the number of SIM swap attack cases reported by various banking institutions over recent years, bringing the urgency of enhanced security measures into the spotlight.

Sector-Specific Insights

In the financial sector, especially, the repercussions have been significant. Various reports from financial regulators and cyber-security agencies have reflected a considerable increase in fraudulent transactions, unauthorized account accesses, and substantial financial losses ensuing from SIM swap attacks.

On the other hand, in the corporate sector, these attacks have been instrumental in data breaches and intellectual property thefts, highlighting the multifaceted nature of SIM swap attacks and their potential to cause extensive damage, both financially and reputationally.

Implications for Individuals

Individuals have not been spared either. Numerous personal accounts narrate the trauma of losing control over personal accounts, the violation of privacy, and substantial financial losses, bringing forth the personal tragedies that lie behind the statistics. These narratives serve as a potent reminder of the vulnerabilities of individuals in the face of this escalating threat.

Thoughts On The Statistics

The convergence of data from credible sources paints a foreboding picture of the increase in SIM swap attacks in recent years. It illustrates a digital environment that is increasingly becoming hostile, with sophisticated attacks targeting unsuspecting individuals and organizations alike. The gravity of the situation demands urgent attention, necessitating reinforced security infrastructures and heightened awareness among the populace.

A multi-pronged approach involving robust cyber hygiene practices, stringent regulatory frameworks, and technology advancements must be the forefront strategy to counter this rise effectively.

The existing reports and data should serve as a wake-up call, encouraging individuals and organizations to foster a security-centric digital culture, thereby safeguarding themselves against the proliferating menace of SIM swap attacks. This is not only about protecting financial assets but also about preserving the integrity of the digital identity of individuals and organizations in an increasingly interconnected world.

Fortifying Your Defense Against SIM Swap Attacks

With a vivid understanding of the nature of SIM swap attacks, let's navigate through the preventive measures one can undertake to safeguard oneself.

Strengthening Security Questions

While setting up security questions, it is imperative to choose options that are not easily decipherable and are not in the public domain. Elaborate on the importance of setting strong and unique security questions that go beyond the common choices to offer an extra layer of security.

Being Discreet with Personal Information

In this age of oversharing, it becomes indispensable to exercise restraint in what we share online. Discuss how being cautious about displaying personal details on social platforms can be a deterrent to potential attackers.

The Shield of Multi-Factor Authentication (MFA)

Detailed exploration of what multi-factor authentication entails and why it is considered one of the most robust defense mechanisms against SIM swap attacks.

Protecting Your Mobile Provider Account

Discuss how fortifying your mobile provider account with unique pins and passwords that are not easy to decipher can act as a strong line of defense against SIM swap attacks.

Vigilance and Quick Response

Discuss the importance of regularly monitoring accounts for any unauthorized activities and how being alert can help in nipping a potential attack in the bud.

The Crucial Step of Reporting

Discuss the necessity and the right channels to report any irregularities noticed during the early stages of a SIM swap attack and how prompt reporting can potentially stop an attack in its tracks.

Here is what I promised to share of great importance. Follow this and you will not become a victim.

How To Prevent SIM Swap Attacks Easily

Okay, so I have shared with you all the basic goings on of SIM swap attacks. I promised you at the outset to share what you can do to prevent your SIM from being attacked.

And here goes:

Step 1: Do Not Use Your SIM Phone Number

Right, this sounds insane right? I mean, What? I can't use my phone for phone calls? You can, but you will be using the SIM for data only. Follow along.

Step 2: Change Your Phone Number:

If you have used your phone number for any length of time, I want you to change it. Privacy and security is not for whingers. If you complain then just close our site and go on in life. Don't say I didn't warn you.

If you are in the USA, or even other countries, go get a prepaid SIM. In USA you can use or and you won't even have to give your real name. That's a subject for another time, but if you want help with that, we have consultations for just $350. It may be well worth it to learn what we have to say.

Step 3: Install MySudo

Download the app MySudo. You can go to their website and learn more. Get the 9 pack of numbers. Then set up each number something like this: #1 Family/Close Friends; #2 Work/Clients; #3 Finance/Banking; #4 Bills/Reoccuring Subscriptions; #5 Loyalty Program (always give those false information); #6-9 can be used when you are car shopping or some other time when someone needs your phone number and perhaps you will change it once you are done.

MySudo is an all-in-one privacy app that allows one to have up to 9 different and compartmentalized psuedonyms with phone number, email and the ability to use privacy cards.

Get this and start setting all your phone numbers up. It's easy and only $150 per year or $15 per month.

Step 4: Install xPal

I recommend for all long distance calls, video calls, and any and all text messaging. Insist on your family using it, and ask you friends to. It is free, encrypted and has more features and asks for no information, unlike Signal (which we still use and love). You can even ask your clients to use it, or anyone else. It comes with an xID. So you can reach out using what we are used to - numbers! It has many more features but I suggest this for all texting.

Remember, your SIM card is only for data and is not connected to you if you follow my directions. Those two privacy apps I shared are all you need to talk, text, video chat, group chat, send files even.


As I shared SIM attacks are real and have increased to an alarming rate in last few years. Don't let someone get your information. Don't give anyone your phone number, including family. If you must have a phone number use MySudo. Encourage your family to use these two systems as well. Set these apps up as I just shared and don't allow yourself to be a victim.

Glossary of Technical Terms

SIM Swap Attacks

SIM swap attacks occur when a hacker takes control of a person's phone number by convincing the mobile service provider to switch the number to a new SIM card owned by the hacker. This facilitates unauthorized access to the person's email, bank accounts, and other sensitive data linked to the phone number.

Two-Factor Authentication (2FA)

Two-factor authentication is a security process wherein a user provides two different authentication factors to verify themselves. In the context of SIM swap attacks, once the hacker has control over the victim's phone number, they can receive the 2FA codes sent via SMS, thus bypassing this security measure.

Multi-Factor Authentication (MFA)

Similar to 2FA, multi-factor authentication requires users to verify their identity using more than two authentication factors, enhancing security measures further.

Phishing Emails

Phishing emails are fraudulent attempts by hackers to obtain sensitive information such as usernames, passwords, and credit card numbers by disguising themselves as trustworthy entities in an electronic communication.

Dark Web

The dark web refers to the encrypted online content that is not indexed by conventional search engines. Often, it is a marketplace for illegal activities, including the sale of stolen personal information.


OTP or One-Time Password is a unique code that is valid for only one login session or transaction. It is commonly used as an additional security feature alongside passwords.

Social Engineering

Social engineering refers to the psychological manipulation of individuals into divulging confidential or personal information. In SIM swap attacks, hackers often use this method to trick telecom service representatives into initiating the SIM swap.

Telecom Provider

A telecom provider or telecommunications service provider is a company that provides services such as phone, internet, and other digital communications services.

Digital Hygiene

Digital hygiene refers to the practices and steps that individuals undertake to maintain and enhance their security while using digital platforms, including using strong passwords, regularly updating software, and being cautious about the kind of information shared online.

Data Breaches

Data breaches occur when there is an unauthorized access to, use, disclosure, disruption, modification, or destruction of personal data. This often happens due to a lack of secure databases and could potentially be a starting point for SIM swap attacks with hackers accessing personal data necessary for the attack.

Intellectual Property Theft

Intellectual property theft refers to the unauthorized use, reproduction, or distribution of someone else's intellectual property, including trade secrets, copyrighted material, and patented inventions. It denotes instances where the hacker might get access to proprietary information via SIM swap attacks.

Cyber Hygiene Practices

Cyber hygiene practices are the measures adopted to secure one's presence in the digital space, similar to how personal hygiene practices are employed to protect physical health.

By defining these technical terms, readers can navigate the complex world of SIM swap attacks with an informed perspective, grasping the intricate details that underlie these sophisticated attacks. Understanding these terms is a fundamental step in fostering a secure digital environment, empowering individuals and organizations alike to protect themselves effectively against potential cyber threats.

Educational Resources on SIM Swap Attacks

  1. Federal Trade Commission (FTC)

    • Website:

    • Description: The FTC offers a range of resources, including articles and tips on how to protect oneself from various forms of cyber-attacks, including SIM swap attacks.

  1. Better Business Bureau (BBB)

    • Website:

    • Description: BBB provides insights and advice on how to protect oneself from different scams and fraudulent activities, including SIM swap frauds.

  1. Cybersecurity & Infrastructure Security Agency (CISA)

    • Website:

    • Description: CISA offers resources and guidelines on maintaining cybersecurity, which includes protection against SIM swap attacks.

  1. Internet Crime Complaint Center (IC3)

    • Website:

    • Description: IC3 provides a platform to report cybercrimes and offers tips on how to avoid becoming a victim of cyber frauds including SIM swap attacks.

  1. KrebsonSecurity

    • Website:

    • Description: Brian Krebs, a well-known security researcher, often writes detailed blogs about various cyber-security issues including SIM swap attacks.

  1. National Cyber Security Centre (NCSC) - UK

    • Website:

    • Description: The NCSC provides guidance and resources to the UK public and businesses on how to protect themselves against cyber threats, including SIM swap attacks.

Reports and Analysis

  1. CipherTrace

    • Website:

    • Description: For in-depth analysis and reports on the SIM swap attacks and other cybersecurity threats, CipherTrace is a reputable source to refer to.

  1. South African Banking Risk Information Centre (SABRIC)

    • Website:

    • Description: SABRIC offers insights into the security risks in the banking sector in South Africa, including statistics and reports on SIM swap frauds.

Community Forums and Social Media

  1. Reddit

    • Website:

    • Description: This subreddit offers a platform where users can discuss and learn about different cybersecurity issues, including SIM swap attacks, from community experiences and expert insights.

  1. Twitter

    • Website:

    • Description: Following cybersecurity experts and organizations on Twitter can help keep you updated on the latest trends and threats, including SIM swap attacks. Some experts to follow are Brian Krebs (@briankrebs) and the Cybersecurity & Infrastructure Security Agency (@CISAgov).

Note that it is important to always verify the credibility of any resource or expert advice you may find online. The above-mentioned resources are reputable and can provide accurate and up-to-date information on SIM swap attacks and how to protect oneself against them.

Frequently Asked Questions about SIM Swap Attacks

1. What is a SIM swap attack?

A SIM swap attack is a fraudulent practice where a hacker tricks a telecommunications provider into swapping the victim's phone number to a new SIM card owned by the hacker. This grants them access to the victim's personal and financial accounts associated with the phone number.

2. How do hackers carry out SIM swap attacks?

Hackers carry out SIM swap attacks by gathering personal information about the potential victim, which can be obtained from various sources including social media, data breaches, and phishing emails. Using this information, they impersonate the victim and convince the telecommunications provider to swap the victim’s phone number to a new SIM card.

3. What can hackers access once they take over my phone number?

Once hackers take over your phone number, they can potentially access any account where your phone number is used as a recovery option or authentication method, including but not limited to your email, social media accounts, and bank accounts.

4. How can I protect myself against SIM swap attacks?

Protecting yourself against SIM swap attacks involves adopting good cyber hygiene practices such as:

  • Using multi-factor authentication

  • Being cautious about sharing personal information online

  • Regularly monitoring your accounts for any suspicious activities

  • Setting up a unique PIN or password for your mobile provider account

5. What should I do if I become a victim of a SIM swap attack?

If you suspect that you have become a victim of a SIM swap attack:

  • Report it to your telecommunications provider immediately

  • Change the passwords for your important accounts

  • Monitor your financial statements for any irregularities

  • Report the incident to the local authorities

6. Are SIM swap attacks common?

SIM swap attacks have been increasing over the recent years, with a notable rise in cases globally. It is becoming a common technique used by cybercriminals to gain unauthorized access to victims’ personal and financial accounts.

7. Can I recover my number if it has been swapped without my consent?

Yes, if you contact your service provider promptly, they can help you in recovering your number. It is important to act quickly to prevent the attacker from causing more damage.

8. How do I know if I am a target of a SIM swap scam?

Some signs that you might be a target include:

  • Your mobile phone suddenly losing service

  • Receiving unexpected verification codes or password reset notifications

  • Being unable to log in to your accounts with your usual credentials

9. Can high-profile individuals also become victims of SIM swap attacks?

Yes, high-profile individuals, including celebrities and corporate executives, have also been targeted in SIM swap attacks, highlighting the necessity for everyone to remain vigilant and adopt protective measures.

10. Can SIM swap attacks be traced?

Tracing SIM swap attacks can be challenging as sophisticated hackers often use various methods to cover their tracks. However, with the cooperation of telecommunications providers and law enforcement agencies, there have been instances where attackers have been traced and prosecuted.

By addressing these commonly asked questions, individuals can better understand SIM swap attacks and how to protect themselves from falling prey to such scams. It is crucial to remain informed and vigilant to foster a safer digital environment.


Commenting has been turned off.
bottom of page