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MUST READ

U.S. CISA adds Citrix NetScaler ADC and Gateway flaw to its Known Exploited Vulnerabilities catalog

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UK NCA arrested four people over M&S, Co-op cyberattacks

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Nippon Steel Solutions suffered a data breach following a zero-day attack

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Hackers weaponize Shellter red teaming tool to spread infostealers

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Microsoft Patch Tuesday security updates for July 2025 fixed a zero-day

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Italian police arrested a Chinese national suspected of cyberespionage on a U.S. warrant

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U.S. CISA adds MRLG, PHPMailer, Rails Ruby on Rails, and Synacor Zimbra Collaboration Suite flaws to its Known Exploited Vulnerabilities catalog

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IT Worker arrested for selling access in $100M PIX cyber heist

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New Batavia spyware targets Russian industrial enterprises

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Taiwan flags security risks in popular Chinese apps after official probe

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U.S. CISA adds Google Chromium V8 flaw to its Known Exploited Vulnerabilities catalog

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Hunters International ransomware gang shuts down and offers free decryption keys to all victims

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SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 52

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Security Affairs newsletter Round 531 by Pierluigi Paganini – INTERNATIONAL EDITION

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North Korea-linked threat actors spread macOS NimDoor malware via fake Zoom updates

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Critical Sudo bugs expose major Linux distros to local Root exploits

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CryptoWall 4.0

Pierluigi Paganini November 27, 2015
Crooks use the Nuclear Exploit Kit to serve CryptoWall 4.0

The popular Nuclear Exploit Kit has been used for the first time to serve the ransomware CryptoWall 4.0. The Nuclear exploit kit is one of the privileged weapon in the arsenal of cyber criminal groups, now the popular crimeware kit has been used to serve the ransomware CryptoWall 4.0. In the past, criminal crews used the […]

Pierluigi Paganini November 10, 2015
Flaw in Linux.Encoder1 ransomware reveals the decryption key

Experts at Bitdefender have discovered a flaw in Linux Encryption Ransomware Linux.Encoder1 that exposes the decryption Key used to lock the files. Last week security experts at Russian antivirus firm Doctor Web reported the discovery of a new Linux ransomware dubbed Linux.Encoder1 that is targeting Linux systems. It has been estimated that tens of users have already […]

Pierluigi Paganini November 09, 2015
Cryptowall 4.0 comes from Russia, Bitdefender released a vaccine

Security experts at Bitdefender speculate that the newborn Cryptowall 4.0 has a Russian origin. The company released a vaccine software. Security experts at Bitdefender seem to have no doubt, the authors of the last variant of the popular Cryptowall ransomware, Cryptowall 4.0 are Russians. The experts came to this conclusion through evidence collected during their investigations, for example, the servers used […]

Pierluigi Paganini November 04, 2015
CryptoWall 4.0 Released with a New Look and Several New Features

The fourth member of the CryptoWall family of ransomware, CryptoWall 4.0, has just been released, complete with new features and a brand new look. We recently reported that CryptoWall 3.0 has allegedly caused over $325 million in annual damages. CryptoWall first emerged in April 2014. Its first major upgrade was dubbed CryptoWall 2.0, and first emerged in October […]

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    recent articles

    U.S. CISA adds Citrix NetScaler ADC and Gateway flaw to its Known Exploited Vulnerabilities catalog

    Hacking / July 11, 2025

    UK NCA arrested four people over M&S, Co-op cyberattacks

    Cyber Crime / July 10, 2025

    PerfektBlue Bluetooth attack allows hacking infotainment systems of Mercedes, Volkswagen, and Skoda

    Hacking / July 10, 2025

    Qantas data breach impacted 5.7 million individuals

    Data Breach / July 10, 2025

    DoNot APT is expanding scope targeting European foreign ministries

    APT / July 10, 2025

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