11 Yahoo boys nabbed by INTERPOL, Police

11 Yahoo boys nabbed by INTERPOL, Police

Eleven suspected Yahoo boys alleged to be members of a prolific cybercrime network have been arrested in Nigeria.

Their arrest was executed after a joint operation involving the Nigerian Police Force (NPF) and INTERPOL.

The suspected Yahoo boys, alleged to be members of the ‘SilverTerrier’ crew, are accused of targeting thousands of organizations worldwide through business email compromise (BEC) scams.

BEC attacks typically involve sending a spoofed email purporting to come from either a senior executive in a targeted organization or a trusted customer. In other cases, hacked email accounts are used to send fraudulent messages. In either case, recipients are instructed to approve payments and transfer funds into accounts controlled by fraudsters, the Daily Swig reports.

Further, the arrest of the Yahoo boys in mid-December reportedly came after a 10-day Operation Falcon II campaign. It was based on intel provided by Interpol, involving the tracking of fraudulent payments.

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Yahoo boys

Led by Interpol’s Cybercrime Directorate in Singapore, Operation Falcon II also involved Nigerian law enforcement agencies; as well as threat intel units from cybersecurity firms Group-IB and Palo Alto Networks.

The fraudsters are believed to be associated with BEC scams against more than 50,000 targets. A total of 800,000 potential victim domain credentials were discovered on the laptop of one of the suspects, Interpol said

Another suspect was said to have been monitoring conversations between 16 companies and their clients; an alleged process of reconnaissance designed to select the optimum time to make fraudulent requests; just as genuine transactions were due to take place.

Interpol’s Global Financial Crime Taskforce is coordinating further action against ‘SilverTerrier’ bank accounts; sharing intelligence on the compromised domain credentials of potential victims with member countries to prevent further fraud.


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