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FBI Warns on Increase in Exploitation of Mobile Banking Apps by Criminals

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FBI Warns on Increase in Exploitation of Mobile Banking Apps by Criminals

The FBI on Wednesday warned that malicious cyber actors were targeting mobile banking apps. As the public increases its use of mobile banking apps, partially due to increased time at home, the FBI anticipates cyber actors will exploit these platforms.

Americans are increasingly using their mobile devices to conduct banking activities such as cashing checks and transferring funds. US financial technology providers estimate more than 75 percent of Americans used mobile banking in some form in 2019.

Studies of US financial data indicate a 50 percent surge in mobile banking since the beginning of 2020. Additionally, studies indicate 36 percent of Americans plan to use mobile tools to conduct banking activities, and 20 percent plan to visit branch locations less often.

With city, state, and local governments urging or mandating social distancing, Americans have become more willing to use mobile banking as an alternative to physically visiting branch locations. T

he FBI expects cyber actors to attempt to exploit new mobile banking customers using a variety of techniques, including app-based banking trojans and fake banking apps.

The FBI advises the public to be cautious when downloading apps on smartphones and tablets, as some could be concealing malicious intent. Cyber actors target banking information using banking trojans, which are malicious programs that disguise themselves as other apps, such as games or tools.

When the user launches a legitimate banking app, it triggers the previously downloaded trojan that has been lying dormant on their device. The trojan creates a false version of the bank’s login page and overlays it on top of the legitimate app.

Once the user enters their credentials into the false login page, the trojan passes the user to the real banking app login page so they do not realize they have been compromised.

Actors also create fraudulent apps designed to impersonate the real apps of major financial institutions, with the intent of tricking users into entering their login credentials. These apps provide an error message after the attempted login and will use smartphone permission requests to obtain and bypass security codes texted to users.

US security research organizations report that in 2018, nearly 65,000 fake apps were detected on major app stores, making this one of the fastest growing sectors of smartphone-based fraud.

Private sector companies manage app stores for smartphones and actively vet these apps for malicious content. Additionally, most major US banks will provide a link to their mobile app on their website.

The FBI recommends only obtaining smartphone apps from trusted sources like official app stores or directly from bank websites.