OpenAI is adding “LOCKDOWN MODE” to #ChatGPT. It won’t stop prompt injections. It’s built to reduce what attackers want next: a way to leak your data out. The mode limits tools that connect to the web or external services, including browsing, images, deep research, agent mode, and file downloads. Read ➝ https://lnkd.in/gBUHVMXe
The Hacker News
Computer and Network Security
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The #1 trusted source for cybersecurity news, insights, and analysis — built for defenders and trusted by decision-makers.
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Updates
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⚡ Your Smart TV might be scraping the web for 🤖 AI. Not hacked. You tapped "accept" for fewer ads. It said "occasionally." The fine print allows 200 GB a month. Read ➝ https://lnkd.in/gygPGNXX Your IP. Your bandwidth. Someone else's bot.
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🚨 A SolarWinds Serv-U bug is now on CISA’s exploited list. CVE-2026-28318 can let unauthenticated requests crash the file server. Patch: Serv-U 15.5.4 HF1. Federal agencies have until June 19, 2026. Read: https://lnkd.in/gMb46r8A
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🔥 AI just found 21 zero-days in FFmpeg. That’s the video library bundled inside many apps, tools, containers, and devices. Some bugs sat untouched for 15–20 years. Google Chrome also dropped PATCHES for a record 429 vulnerabilities this week. Read: https://lnkd.in/gw8VMWR4
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🚨 73 Microsoft GitHub repos just went dark. They were hit by Miasma, a self-replicating supply chain attack spreading through trusted open-source channels. Azure and MicrosoftDocs repos were among those impacted. Read this: https://lnkd.in/gPd7wgEm
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🚨 New Cisco SD-WAN vulnerability under active exploitation. CVE-2026-20245 lets authenticated netadmin attackers run commands as root via crafted file uploads. No patches or mitigations are available. Check /var/log/scripts.log for IoCs. Read: https://lnkd.in/gKiJeRAm
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ALERT - One crafted web request. No authentication. Cisco Unified CM allows arbitrary file write to the OS. From there you can escalate to root. Only impacts systems with WebDialer enabled. PoC is already public. https://lnkd.in/g97zUC7Z
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A single forgotten debug flag... and billions of Microsoft 365 Android users became exposed. Any other app on the same phone could quietly take your account token and access email, files, OneDrive, and Teams. Zero user interaction needed. The bug stayed live for years. Update Word, Excel, PowerPoint, and Copilot now. https://lnkd.in/eB3Wi-zx
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This wasn’t found by a human team. An autonomous AI tool spotted a critical Redis flaw that sat hidden for over 2 years. One authenticated user could run OS commands on the server. What else is still hiding in code we think is safe? https://lnkd.in/gwtpmaxj
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🚨Multiple npm attacks. Same target ➝ developer secrets. 🔸 One wave used 50+ poisoned packages to spread IronWorm, a Rust-based stealer. 🔸 Another hit 57 npm packages across 286+ malicious versions with a new Miasma worm variant. Read and Check what you installed recently: https://lnkd.in/ghYyRtBu
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