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Data Breaches News 15 July 2025 - 30 October 2025

Ransomware Topples 158-Year-Old Company, Nuclear Agency Hacked, and Breaches Expose Millions – Cybersecurity Roundup (July 21–28, 2025)

Massive Cybersecurity Storm: Ransomware Rampages, Mega-Breach Scare & Global Outages

Crippling Breaches Hit Businesses and Infrastructure Late October brought a wave of alarming cyber breaches across industries. Advertising leader Dentsu revealed that its U.S. arm Merkle was compromised, forcing systems offline as investigators found employee banking details, payroll info, and client records exposed bleepingcomputer.com bleepingcomputer.com. In aviation, WestJet (Canada’s second-largest airline) admitted hackers stole sensitive customer data including passport scans and personal details ts2.tech. The carrier traced the breach to a third-party IT supplier and is offering affected fliers credit monitoring ts2.tech. Security experts call stolen passport info especially dangerous since it can enable identity theft and fraud in travel
30 October 2025
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183 Million Email Passwords Leaked – Gmail Users Urged to Check If They’re Affected

183 Million Email Passwords Leaked – Gmail Users Urged to Check If They’re Affected

Infostealer Malware Fuels a Mega-Breach Cybersecurity officials are sounding the alarm after a massive trove of 183 million stolen account credentials was uncovered. Unlike a typical breach of a single database, this haul of email addresses and passwords came from malware “infostealer” campaigns that infected victims’ computers over time gadgetreview.com the-independent.com. When users logged into various websites – email, social media, banking, and more – the malware silently recorded their login keystrokes and saved passwords, funneling these details to cybercriminals. The result is an enormous composite leak spanning countless online services. In total about 3.5 terabytes of data (mostly in
28 October 2025
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Ransomware Topples 158-Year-Old Company, Nuclear Agency Hacked, and Breaches Expose Millions – Cybersecurity Roundup (July 21–28, 2025)

Ransomware Topples 158-Year-Old Company, Nuclear Agency Hacked, and Breaches Expose Millions – Cybersecurity Roundup (July 21–28, 2025)

UK Co-op confirmed a data breach affecting 6.5 million members, with attackers stealing an Active Directory database after a social‑engineering password reset on April 22 and deploying the DragonForce ransomware. KNP Logistics, a British transport firm founded in 1865, collapsed into administration after the Akira ransomware breached it in June 2024 via a guessed weak password, costing 730 jobs. Louis Vuitton disclosed data breaches in South Korea, Turkey, the UK, Italy, and Sweden beginning in early July 2025, linked to the ShinyHunters group, exposing names, birthdates, addresses, emails, and purchase history while stating no payment data was compromised. Allianz Life
28 July 2025
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Cybersecurity Mayhem: Major Hacks, Data Breaches & Bold Defenses – Roundup (July 14, 2025)

Cybersecurity Mayhem: Major Hacks, Data Breaches & Bold Defenses – Roundup (July 14, 2025)

Security analysts reported a 133% rise in Iranian state-sponsored attacks through May–June 2025, with Nozomi Networks tracking 28 incidents across six APT groups (MuddyWater, APT33, OilRig, CyberAvengers, Fox Kitten, Homeland Justice), and MuddyWater alone carrying out five breaches targeting OT/ICS. A joint alert by CISA, the FBI, NSA and DoD warned Iranian hackers may target defense, water, and aviation firms amid rising Middle East tensions. In Europe, Chinese state-backed hackers exploited a zero-day in Ivanti VPN appliances to infiltrate French government networks, with ANSSI linking the operation to the UNC5174 group. The U.S. Department of Justice announced the takedown of
15 July 2025
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