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Cyber Security

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4276 ARTICLES

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Ransomware gangs go after EMEA healthcare’s supply chain

A ransomware attack against a hospital makes headlines, while attacks on the rest of the ecosystem around it tend to stay quiet despite doing damage that can be just as bad. Flare researcher Assaf Morag analyzed ransomware leak-site activity tied to healthcare organizations in the EMEA region between 2024 and 2026, and found that ransomware groups are going after the entire healthcare supply chain. The dataset covers hospitals and clinics, telemedicine providers, diagnostic laboratories, pharmacies, … More → The post Ransomware gangs go after EMEA healthcare’s supply chain appeared first on Help Net Security.

BY Sinisa Markovic
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Ransomware gangs go after EMEA healthcare’s supply chain
The best-funded companies open the most phishing attachments
CYBERSECURITY

The best-funded companies open the most phishing attachments

An employee gets an email dressed as a password reset. She clicks the link, types her credentials into a page built to copy her company’s login screen, and moves on with her morning. She tells no one. That silence is the exposure. Across 13.9 million simulated phishing messages, one in ten recipients flagged the attempt to their security team. The rest let it through, and a live attacker needs only one of them. John Wilson, … More → The post The best-funded companies open the most phishing attachments appeared first on Help Net Security.

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Ransomware in 2026: More groups, more victims, no slowdown
CYBERSECURITY

Ransomware in 2026: More groups, more victims, no slowdown

Ransomware activity followed a recognizable pattern during the previous four years. Each year was defined by a dominant actor, its collapse, or a major supply chain incident. Black Kite’s 2026 Ransomware Report documents a more fragmented market, with multiple ransomware playbooks scaling at the same time. Monthly victim count by threat actor (Source: Black Kite) Between April 2025 and March 2026, 61 new ransomware groups entered the market, averaging more than one group per week. … More → The post Ransomware in 2026: More groups, more victims, no slowdown appeared first on Help Net Security.

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Russian Espionage Group Exploited Zimbra Zero-Day to Steal Mail and 2FA Codes
CYBERSECURITY

Russian Espionage Group Exploited Zimbra Zero-Day to Steal Mail and 2FA Codes

A Russian state-supported espionage group spent months reading Western mailboxes through a then-unknown flaw in Zimbra’s webmail client. The payload goes after the last 90 days of email, the organization’s entire email directory, the password saved in the browser and the codes kept for two-factor recovery. Opening the message was enough to start it. The NSA, CISA and partner agencies published

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Why Model Routing Backfires and How to Build Agents That Don’t Burn Your Budget
CYBERSECURITY

Why Model Routing Backfires and How to Build Agents That Don’t Burn Your Budget

Model routing promises to cut your AI agent spend by offloading routine tasks to cheaper models like Claude Haiku while reserving frontier models like Claude Sonnet for complex reasoning. In the right configuration, routing strategies can reduce inference costs by 40–85%. But if you implement routing incorrectly in a multi-turn agent, you can end up

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