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New Cisco firewall malware can only be killed by pulling the plug

New Cisco firewall malware can only be killed by pulling the plug 2026-04-24 at 13:17 By Zeljka Zorz Suspected state-sponsored attackers are using a custom backdoor to persistently compromise Cisco security devices (firewalls), the US CISA and the UK National Cyber Security Centre warned on Thusday. “The [Firestarter] malware (…) is relevant for both Cisco […]

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AI is speeding up nation-state cyber programs

AI is speeding up nation-state cyber programs 2026-04-24 at 08:40 By Mirko Zorz Im this Help Net Security interview, Kaja Ciglic, Senior Director, Cybersecurity Policy and Diplomacy at Microsoft, discusses how nation-state cyber programs have changed over three years. Cyber has become a core instrument of state power, integrated with military, economic, and diplomatic tools.

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With AI’s help, North Korean hackers stumbled into a near-undetectable attack

With AI’s help, North Korean hackers stumbled into a near-undetectable attack 2026-04-24 at 08:22 By Zeljka Zorz For many years, state-sponsored hacking was defined by human expertise in finding security holes, writing malware and exploits, pulling off social engineering and phishing attacks, and much more. Since the advent of LLM-powered AI assistants and tools, less

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Apple fixes iPhone bug that let FBI retrieve deleted Signal messages(CVE-2026-28950)

Apple fixes iPhone bug that let FBI retrieve deleted Signal messages(CVE-2026-28950) 2026-04-23 at 14:17 By Zeljka Zorz Apple has rolled out security updates for iPhones and iPads that fix CVE-2026-28950, a logging issue in Notification Services that made devices unexpectedly retain notifications marked for deletion. The vulnerability was patched following a recent report about the

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A year in, Zoom’s CISO reflects on balancing security and business

A year in, Zoom’s CISO reflects on balancing security and business 2026-04-23 at 09:47 By Mirko Zorz In this Help Net Security interview, Sandra McLeod, CISO at Zoom, reflects on her first year in the role. She talks about moving from reactive firefighting to business strategy, and what she heard from engineers, the board, and

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New Mirai variants target routers and DVRs in parallel campaigns

New Mirai variants target routers and DVRs in parallel campaigns 2026-04-22 at 16:42 By Zeljka Zorz Hidden inside newly discovered botnet malware is an unusual message from its creator: “AI.NEEDS.TO.DIE”. Dubbed “tuxnokill” by researchers at Akamai, the malware is one of two fresh Mirai botnet variants documented this month by major cybersecurity firms and, judging

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Progress Software fixes sneaky WAF bypass vulnerability (CVE-2026-21876)

Progress Software fixes sneaky WAF bypass vulnerability (CVE-2026-21876) 2026-04-22 at 14:47 By Zeljka Zorz Progress Software has fixed a slew of high-severity vulnerabilities in MOVEit WAF and LoadMaster, including a flaw (CVE-2026-21876) that may allow attackers to bypass firewall detection. MOVEit WAF (web application firewall) is designed to protect Progress’s managed file transfer platform MOVEit

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CISA flags another Cisco Catalyst SD-WAN Manager bug as exploited (CVE-2026-20133)

CISA flags another Cisco Catalyst SD-WAN Manager bug as exploited (CVE-2026-20133) 2026-04-21 at 15:29 By Zeljka Zorz CISA added eight new vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, including a Cisco Catalyst SD-WAN Manager vulnerability (CVE-2026-20133) that Cisco has yet to flag as exploited. Three Cisco Catalyst SD-WAN Manager vulnerabilities Alongside CVE-2026-20133, CISA has

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Vercel breached via compromised third-party AI tool

Vercel breached via compromised third-party AI tool 2026-04-20 at 18:12 By Zeljka Zorz Cloud deployment and hosting platform Vercel has suffered a security breach that resulted in attackers accessing some of its internal systems and compromising Vercel credentials of a “limited subset of customers”. Advice for affected customers “The incident originated with a compromise of

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AI platform ATHR makes voice phishing a one-person job

AI platform ATHR makes voice phishing a one-person job 2026-04-20 at 14:37 By Zeljka Zorz For $4,000 and a cut of the take, a lone criminal can now run a fully automated voice-phishing operation via ATHR, a plaform that spoofs emails alerts from Google, Microsoft, and Coinbase, buries a phone number in each message, and

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Researcher drops two more Microsoft Defender zero-days, all three now exploited in the wild

Researcher drops two more Microsoft Defender zero-days, all three now exploited in the wild 2026-04-17 at 14:32 By Zeljka Zorz The security researcher who earlier this month published a proof-of-concept (PoC) exploit for a zero-day privilege escalation vulnerability in Microsoft Defender is back with two more. The first, dubbed “RedSun,” is another privilege escalation flaw

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NIST admits defeat on NVD backlog, will enrich only highest-risk CVEs going forward

NIST admits defeat on NVD backlog, will enrich only highest-risk CVEs going forward 2026-04-16 at 19:48 By Zeljka Zorz NIST is overhauling how it manages the National Vulnerability Database (NVD) and switching to a risk-based model that prioritizes “enrichment” of only the most critical CVE-numbered security vulnerabilities. “This change is driven by a surge in

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Fortinet fixes critical FortiSandbox vulnerabilities (CVE-2026-39813, CVE-2026-39808)

Fortinet fixes critical FortiSandbox vulnerabilities (CVE-2026-39813, CVE-2026-39808) 2026-04-16 at 18:37 By Zeljka Zorz Two vulnerabilities (CVE-2026-39813, CVE-2026-39808) in FortiSandbox could be leveraged by unauthenticated attackers to bypass authentication and execute unauthorized code or commands on vulnerable systems. Both vulnerabilities can be triggered with a specially crafted HTTP request, putting unpatched FortiSandbox deployments at risk. About

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Tails 7.6.2 patches vulnerability that could expose saved files

Tails 7.6.2 patches vulnerability that could expose saved files 2026-04-16 at 13:34 By Anamarija Pogorelec The Tails Project released Tails v7.6.2, an emergency release of the popular open source secure portable operating system. What is Tails? Tails, which is based on Debian GNU/Linux, is aimed at users who want to preserve their online privacy and

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What the EU AI Act requires for AI agent logging

What the EU AI Act requires for AI agent logging 2026-04-16 at 09:02 By Help Net Security The EU AI Act is 144 pages long. The logging requirements that matter for AI agent developers sit across four articles that keep referencing each other. Here’s what they say, when the deadlines hit, and where the gaps

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Coordinated vulnerability disclosure is now an EU obligation, but cultural change takes time

Coordinated vulnerability disclosure is now an EU obligation, but cultural change takes time 2026-04-15 at 10:02 By Mirko Zorz In this Help Net Security interview, Nuno Rodrigues Carvalho, Head of Sector for Incident and Vulnerability Services at ENISA, discusses the recent CVE funding scare and what it exposed about the fragility of global vulnerability disclosure

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The exploit gap is closing, and your patch cycle wasn’t built for this

The exploit gap is closing, and your patch cycle wasn’t built for this 2026-04-15 at 10:02 By Mirko Zorz The Cloud Security Alliance has published a briefing on what it calls a turning point in the threat landscape: the time between a vulnerability being discovered and a working exploit is shrinking fast. The briefing centers

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Testing reveals Claude Mythos’s offensive capabilities and limits

Testing reveals Claude Mythos’s offensive capabilities and limits 2026-04-14 at 18:15 By Zeljka Zorz Could Claude Mythos Preview, Anthropic’s latest large language model, be leveraged for fully automated cyber attacks? The UK government’s AI Security Institute (AISI) tested its capability to successfully engage in capture-the-flag (CTF) challenges and multi-step attack scenarios, and found that that

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Booking.com data breach: Customer reservation data exposed

Booking.com data breach: Customer reservation data exposed 2026-04-14 at 16:21 By Zeljka Zorz “Unauthorized third parties may have been able to access certain booking information associated with your reservation,” email alerts sent out by Booking.com over the weekend warn. The online travel agency did not say which system(s) were accessed by the unauthorized third parties

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AI adoption is outpacing the safeguards around it

AI adoption is outpacing the safeguards around it 2026-04-14 at 12:59 By Anamarija Pogorelec AI is becoming part of professional and private life, reaching mainstream adoption faster than the personal computer or the internet. These systems are tested in reasoning, safety, and real-world tasks, but the reliability of those measurements remains uncertain. The 2026 AI

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