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MUST READ

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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Google fined $314M for misusing idle Android users' data

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A flaw in Catwatchful spyware exposed logins of +62,000 users

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China-linked group Houken hit French organizations using zero-days

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Cybercriminals Target Brazil: 248,725 Exposed in CIEE One Data Breach

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Europol shuts down Archetyp Market, longest-running dark web drug marketplace

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Kelly Benefits data breach has impacted 550,000 people, and the situation continues to worsen as the investigation progresses

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Cisco removed the backdoor account from its Unified Communications Manager

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U.S. Sanctions Russia's Aeza Group for aiding crooks with bulletproof hosting

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Qantas confirms customer data breach amid Scattered Spider attacks

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CVE-2025-6554 is the fourth Chrome zero-day patched by Google in 2025

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U.S. CISA adds TeleMessage TM SGNL flaws to its Known Exploited Vulnerabilities catalog

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A sophisticated cyberattack hit the International Criminal Court

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Esse Health data breach impacted 263,000 individuals

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hacktivists

Pierluigi Paganini January 12, 2025
Pro-Russia hackers NoName057 targets Italy again after Zelensky’s visit to the country

Over the weekend, Italy faced new waves of DDoS attacks carried out by pro-Russia group NoName057(16). Pro-Russia hackers Noname057(16) targeted Italian ministries, institutions, critical infrastructure’s websites and private organizations over the weekend. The new wave of attacks coincides with the visit of Ukrainian President Volodymyr Zelensky to Italy. The group claimed responsibility for the attacks […]

Pierluigi Paganini December 09, 2023
Hacktivists hacked an Irish water utility and interrupted the water supply

Threat actors launched a cyberattack on an Irish water utility causing the interruption of the power supply for two days. Threat actors hacked a small water utility in Ireland and interrupted the water supply for two days. The victim of the attack is a private group water utility in the Erris area, the incident impacted […]

Pierluigi Paganini November 22, 2023
SiegedSec hacktivist group hacked Idaho National Laboratory (INL)

The Idaho National Laboratory (INL) disclosed a data breach after the SiegedSec hacktivist group leaked stolen human resources data. SiegedSec hacktivists group claimed responsibility for the hack of The Idaho National Laboratory (INL) and leaked stolen human resources data. SiegedSec is a threat actor that last year carried out multiple attacks against U.S. organizations, especially […]

Pierluigi Paganini September 27, 2022
Mandiant identifies 3 hacktivist groups working in support of Russia

Researchers are tracking multiple self-proclaimed hacktivist groups working in support of Russia, and identified 3 groups linked to the GRU. Mandiant researchers are tracking multiple self-proclaimed hacktivist groups working in support of Russia, and identified 3 groups linked to the Russian Main Intelligence Directorate (GRU). The experts assess with moderate confidence that moderators of the […]

Pierluigi Paganini September 13, 2022
Pro-Palestinian group GhostSec hacked Berghof PLCs in Israel

The hacktivist collective GhostSec claimed to have compromised 55 Berghof PLCs used by Israeli organizations. Pro-Palestinian Hacking Group GhostSec claimed to have compromised 55 Berghof programmable logic controllers (PLCs) used by Israeli organizations as part of a Free Palestine campaign. On September, 4th, 2022, GhostSec announced on social media and its Telegram channel that it has compromised […]

Pierluigi Paganini April 08, 2015
Anonymous collective hit Israel as part of opIsrael 2015

Anonymous hit numerous Israeli websites as promised in a video message posted a few days ago, which was threatening Israel with “the electronic holocaust.” As promised hackers belonging to the Anonymous collective have hit Israeli websites. Last week Anonymous hacktivists published a video online threatening Israel with “the electronic holocaust.” The voice in the video […]

Pierluigi Paganini March 31, 2015
Anonymous collective threatens Israel with electronic-holocaust

Anonymous has posted a video message threatening Israel with “the electronic holocaust” which would “erase it from cyberspace” on next April 7. Once again the group of  hacktivits Anonymous has threatened Israel with “the electronic holocaust” which would “erase it from cyberspace.” The massive cyber attack announced by Anonymous is planned on April 7 for “crimes in the Palestinian territories.” […]

Pierluigi Paganini November 29, 2014
Are AnonGhostTeam hacktivists using malware to infect end users?

Experts at Zscaler security firm discovered several websites defaced by AnonGhostTeam hacktivists leading to Dokta Chef Exploit Kit and CVE-2014-6332 Many security experts tend to ridicule the threat of hacktivist groups, in many professionals consider the groups that express political dissent through cyber attacks as a harmless threat. Now cyber experts are warning of a new hacktivist campaign managed […]

Pierluigi Paganini August 01, 2014
OpSaveGaza , Anonymous paralized Mossad website with a DDoS

Members of the group of hacktivists Anonymous have coordinated a major Distributed Denial of Service attack early this morning as part of the #OpSaveGaza. Anonymous, the popular collective of hacktivists, has taken down the official website of the Israeli intelligence agency Mossad as announced through a tweet from one of its numerous accounts. Obviously the collective […]

Pierluigi Paganini June 30, 2014
OpNO2ISIS Anonymous will attack states supporting ISIS group

Anonymous has announced the campaign dubbed Operation NO2ISIS against some states it accuses of supporting the Islamic terror group ISIS. The group of hacktivists Anonymous has announced a new campaign dubbed Operation NO2ISIS against some nations it accuses of funding or arming the radical Islamic terror group ISIS. In particular Anonymous will target three states suspected of […]

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    recent articles

    Taiwan flags security risks in popular Chinese apps after official probe

    Security / July 07, 2025

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

    Hacking / July 07, 2025

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

    Cyber Crime / July 06, 2025

    SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 52

    Security / July 06, 2025

    Security Affairs newsletter Round 531 by Pierluigi Paganini – INTERNATIONAL EDITION

    Breaking News / July 06, 2025

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