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What to do when you receive an extortion e-mail

In the last few weeks, there has been an upswing in people receiving threatening, extortion e-mail messages, demanding payment to avoid release of sensitive information. Most of the time, these e-mails are what we call “sextortion” e-mails, as they claim that malware on your computer has captured embarrassing photos of you through the webcam, but there can be other variants on the same … [Read more...]

A week in security (August 19 – 25)

Last week on Malwarebytes Labs, we reported on the presence of Magecart on a type of poker software; outlined how the Key Negotiation of Bluetooth (KNOB) attack works; followed the money on a Bitcoin sextortion campaign; looked back at DEF CON 27; and reported on continuing ransomware attacks on several US cities. Other cybersecurity news After turning away two vulnerability reports brought … [Read more...]

The lucrative business of Bitcoin sextortion scams

After a quiet period following a surge in late 2018 to early 2019, the online blackmail scheme known as sextortion scams are back on the radar and on the uptick. According to a report from Digital Shadows, a leading UK-based cybersecurity company that monitors potential threats against businesses, there are several resources available to embolden novice criminals to a life of extortion. These … [Read more...]