Dual Ransomware Attacks on the Rise ๐Ÿšจ

Oct 02 2023

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Welcome to Gone Phishing, your daily cybersecurity newsletter that puts the screws into cybercriminals, like #BBCLauraK with Rishi Sunak ๐Ÿ‘€ Cโ€™mon, answer the freaking question you jammy dodger! ๐Ÿ™ˆ

Todayโ€™s hottest cybersecurity news stories:

  • ๐Ÿ’ฐ Dual Ransomware attacks are on the up in the U.S., says FBI ๐Ÿ‘ฎ

  • ๐Ÿ”Š Researchers can extract sounds from still images on phones ๐Ÿ“ฑ

  • ๐Ÿฐ Fort Lauderdale gets scammed out of $1.2m by fake invoice ๐Ÿšซ

Hackers: I challenge you to a Dual ๐Ÿ‘€โš”๏ธ๐Ÿ’€

๐Ÿšจ FBI Alert: Dual Ransomware Attacks on the Rise ๐Ÿšจ

๐Ÿ‘‰ The FBI has issued a warning about a concerning trend in cyberattacks targeting businesses. Since July 2023, hackers have been launching dual ransomware attacks on the same victims. ๐Ÿ˜ฑ

๐Ÿ”’ These attacks involve using two different ransomware variants, such as AvosLocker, Diamond, Hive, Karakurt, LockBit, Quantum, and Royal. ๐Ÿ˜ˆ These variants are deployed in different combinations, making it even more challenging to defend against.

๐Ÿ“ˆ While the scale of these attacks is unclear, they typically occur within 48 hours to 10 days of each other. ๐Ÿ˜จ

๐Ÿคฏ What's alarming is the increased use of custom data theft and malware to pressure victims into paying up. This double ransomware approach results in data encryption, exfiltration, and financial losses.

๐Ÿ“… Dual ransomware attacks aren't entirely new, with instances dating back to May 2021. Recent cases include a triple attack on an automotive supplier and a 3AM ransomware assault earlier this month.

๐Ÿ›ก๏ธ Top Tips

To protect your organisation from dual (or single for that matter!) ransomware attacks you should consider the followingโ€ฆ

  • ๐Ÿ’พ Strengthen defences with offline backups

  • ๐Ÿ” Monitor remote connections

  • ๐Ÿ” Use multi-factor authentication

  • ๐Ÿ•ต๏ธ Audit user accounts

  • ๐ŸŒ Segment networks

Stay safe and stay vigilant against these evolving cyber threats! ๐Ÿ›ก๏ธ๐Ÿ”’

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๐Ÿ“ข Exciting Research Alert! ๐Ÿ“ข

๐Ÿ“ธ Did you know your smartphone camera can leak sounds? ๐Ÿ“ข Academic researchers have uncovered a fascinating technique to extract sounds from photos taken with smartphone cameras! ๐Ÿคฏ

๐Ÿ“น How does it work? The movement of camera parts, like rolling shutters and moving lenses, creates hidden sounds. These sounds are then modulated into images as imperceptible distortions. ๐Ÿ“ท

๐Ÿ‘€ What's the catch? This "optical-acoustic side channel" doesn't need a direct line of sight or objects in view. ๐Ÿ˜ฑ

๐Ÿค– Machine learning comes into play! Researchers used it to identify different speakers, genders, and spoken digits. They trained their model using thousands of samples from various smartphones, like Google Pixel, Samsung Galaxy, and Apple iPhone. ๐Ÿ“ฑ

๐ŸŽฏ Results? Impressive! Accuracy rates of 80.66% for digit recognition, 91.28% for speaker identity, and 99.67% for gender detection. ๐ŸŽค๐Ÿง‘๐Ÿ‘ฉ

๐Ÿ”’ How to protect yourself? Lower-quality cameras leak less info, and keeping your phone away from speakers helps. Smartphone makers can enhance security with higher shutter frequencies, tougher lens mechanisms, and more.

Stay cautious and informed about the evolving tech landscape! ๐Ÿ“Š๐Ÿ‘€

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๐Ÿšจ Scam Alert in Fort Lauderdale! ๐Ÿšจ

๐Ÿข Fort Lauderdale, Florida, fell victim to a $1.2 million email scam earlier this month. ๐Ÿ˜ฑ They thought it was a legitimate bill from Moss Construction for their new police headquarters. But it turned out to be a scam! ๐Ÿ—๏ธ

๐Ÿ•ต๏ธ The fraudsters posed as Moss Construction, sent an ACH payment request, and even attached a blank check. Accounts Payable thought it checked out since the names matched corporate records. ๐Ÿ“‘

๐Ÿ’ธ The payment, made on Sept. 14, was a significant one for the $119 million construction project approved by residents in 2019.

๐Ÿ“‰ Impersonation scams like this are becoming all too common, with consumers losing billions to fraud in 2022. ๐Ÿ“Š

๐Ÿ™๏ธ City governments, especially in Florida, are facing a surge in business email compromise and phishing scams. ๐Ÿ˜ก

๐Ÿ” Fort Lauderdale is working to recover the money with their bank, but it might take some time. Stay vigilant, folks! ๐Ÿ“†

Protect yourself from scams and stay cautious online! ๐Ÿ›ก๏ธ๐Ÿ’ป Speak to you tomorrow, cyber squad ๐Ÿ˜‰

So long and thanks for reading all the phish!

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