The Federal Bureau of Investigation (FBI) observed an escalation in SIM swap attacks aimed at stealing millions from the victims by hijacking their mobile phone numbers.
The FBI reported that US citizens have lost more than $68 million to SIM swapping attacks in 2021, the number of complaints since 2018 and associated losses have increased almost fivefold.
In 2018, the FBI Internet Crime Complaint Center (IC3) received complaints for 1,611 SIM swapping attacks, while the number of complaints in the period between 2018 e 2002 was 320 causing a total of losses of $12 million.
“The Federal Bureau of Investigation is issuing this announcement to inform mobile carriers and the public of the increasing use of Subscriber Identity Module (SIM) swapping by criminals to steal money from fiat and virtual currency accounts.” reads the Publish Service Announcement published by the IC3. “From January 2018 to December 2020, the FBI Internet Crime Complaint Center (IC3) received 320 complaints related to SIM swapping incidents with adjusted losses of approximately $12 million. In 2021, IC3 received 1,611 SIM swapping complaints with adjusted losses of more than $68 million.”
Crooks conduct SIM swapping attacks to take control of victims’ phone numbers tricking the mobile operator employees into porting them to SIMs under the control of the fraudsters. Once hijacked a SIM, the attackers can steal money, cryptocurrencies and personal information, including contacts synced with online accounts. The criminals could hijack social media accounts and bypass 2FA services based on SMS used by online services, including financial ones.
The FBI recommends individuals take the following precautions:
The FBI recommends mobile carriers take the following precautions:
In February 2021, eight men were arrested in England and Scotland as part of a year-long international investigation into a series of SIM swapping attacks targeting high-profile victims in the United States.ⓘThe investigation, coordinated by Europol, involved law enforcement authorities from the United Kingdom, United States, Belgium, Malta and Canada.
Europol investigators revealed that the cybercrime organization stole more than $100 million worth of cryptocurrency using SIM Swapping attacks.
The National Crime Agency revealed that the SIM swapping attacks targeted numerous victims throughout 2020, including well-known influencers, sports stars, musicians, and their families.
In February 2021, the telecommunications provider T-Mobile disclosed a data breach after it became aware that some of its customers were allegedly victims of SIM swap attacks. An unknown attacker gained access to customers’ account information, including personal info and personal identification numbers (PINs), T-Mobile already notified the impacted customers.
Below are the FBI’s recommendations for individuals:
and mobile carriers:
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(SecurityAffairs – hacking, SIM SWAP)