Most people never think about root certificates. But almost everything online depends on them. This week, Microsoft Defender made a move that sounds small on the surface — removing a root certificate from Windows computers. In reality, it’s the kind of…
What researchers learned about building an LLM security workflow
Security operations centers are running into the same wall everywhere. Detection tools generate more alerts than analysts can work through, and the early stages of any investigation involve pulling together logs from several sources to decide whether something is worth…
Spotting third-party cyber risk before attackers do
In this Help Net Security video, Jeffrey Wheatman, SVP and Cyber Strategist at Black Kite, discusses how organizations can identify and manage third-party cyber exposures before attackers exploit them. He argues that businesses should move beyond a data-loss mindset toward…
Nvidia China Market Share Zero
This post doesn’t have text content, please click on the link below to view the original article. This article has been indexed from Cybersecurity Today Read the original article: Nvidia China Market Share Zero
Your work apps are quietly handing 19 data points to someone
Office work in 2026 runs through a stack of mobile apps that sit on the same phones people use for banking, messaging family, and tracking their location. Ten of the most common workplace apps in use across U.S. companies, including…
IT Security News Hourly Summary 2026-05-04 06h : 1 posts
1 posts were published in the last hour 3:11 : Five Eyes spook shops warn agentic is too wonky for rapid rollout
Five Eyes spook shops warn agentic is too wonky for rapid rollout
Prioritize resilience over productivity, say CISA, NCSC and their friends from Oz, NZ, Canada Information security agencies from the nations of the Five Eyes security alliance have co-authored guidance on the use of agentic AI that warns the technology will…
ISC Stormcast For Monday, May 4th, 2026 https://isc.sans.edu/podcastdetail/9916, (Mon, May 4th)
This post doesn’t have text content, please click on the link below to view the original article. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: ISC Stormcast For Monday, May 4th, 2026…
Marcus & Millichap – 1,837,078 breached accounts
In April 2026, the commercial real estate brokerage firm Marcus & Millichap was named as one of multiple alleged victims of the ShinyHunters hacking and extortion group. Data alleged to have been obtained from the company was subsequently released publicly…
ChatGPT advanced account security adds passkeys and hardware keys
Journalists, elected officials, researchers, and political dissidents have spent years adapting their accounts to phishing-resistant authentication on consumer platforms. ChatGPT now joins that list. OpenAI has introduced Advanced Account Security, an opt-in setting that strips password-based sign-in from ChatGPT and…
IT Security News Hourly Summary 2026-05-04 00h : 3 posts
3 posts were published in the last hour 21:58 : IT Security News Weekly Summary 18 21:55 : IT Security News Daily Summary 2026-05-03 21:34 : Salt Typhoon breach IBM subsidiary in Italy: a warning for Europe’s digital defenses
IT Security News Weekly Summary 18
210 posts were published in the last hour 21:55 : IT Security News Daily Summary 2026-05-03 21:34 : Salt Typhoon breach IBM subsidiary in Italy: a warning for Europe’s digital defenses 19:5 : IT Security News Hourly Summary 2026-05-03 21h…
IT Security News Daily Summary 2026-05-03
30 posts were published in the last hour 21:34 : Salt Typhoon breach IBM subsidiary in Italy: a warning for Europe’s digital defenses 19:5 : IT Security News Hourly Summary 2026-05-03 21h : 1 posts 18:7 : Microsoft Defender Mistakenly…
Salt Typhoon breach IBM subsidiary in Italy: a warning for Europe’s digital defenses
April 2026 breach at Sistemi Informativi (IBM Italy) raises concerns over Chinese-linked cyber ops in Europe, including Salt Typhoon. In late April 2026, the Italian cybersecurity landscape was shaken by a significant breach targeting Sistemi Informativi, a company wholly owned…
IT Security News Hourly Summary 2026-05-03 21h : 1 posts
1 posts were published in the last hour 18:7 : Microsoft Defender Mistakenly Flags DigiCert Root Certificates as Malware
Microsoft Defender Mistakenly Flags DigiCert Root Certificates as Malware
Microsoft Defender triggered widespread false positive alerts after a faulty security update caused it to flag two legitimate DigiCert root certificates as malicious, potentially disrupting SSL/TLS validation and code-signing operations across enterprise environments worldwide. A Defender antimalware signature update released…
CISA Highlights CVE-2026-31431 as an Active Linux Root Exploitation Risk
Several vulnerabilities in the Linux kernel have been recently disclosed that have attracted heightened scrutiny from the cybersecurity community, following evidence that they can be exploited to obtain full root-level control across a wide range of systems consistently. This…
Wireshark 4.6.5 Released, (Sun, May 3rd)
Wireshark release 4.6.5 fixes 43 vulnerabilities (38 CVEs) and 35 bugs. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: Wireshark 4.6.5 Released, (Sun, May 3rd)
Kyber Ransomware Tests Post‑Quantum Encryption on Windows Networks
A new ransomware group named Kyber has pushed the envelope by experimenting with post‑quantum encryption in attacks on Windows‑based networks, according to recent cybersecurity analysis. The group has been observed targeting both Windows file servers and VMware ESXi platforms,…
Paying Ransom Won’t Help as VECT 2.0 Ransomware Destroys Data Irreversibly
VECT 2.0 ransomware contains fatal flaws that permanently destroy files, making recovery impossible and rendering ransom payments useless for victims worldwide. This article has been indexed from Hackread – Cybersecurity News, Data Breaches, AI and More Read the original article:…
SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 95
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter fast16 | Mystery ShadowBrokers Reference Reveals High-Precision Software Sabotage 5 Years Before Stuxnet 73 Open VSX Sleeper Extensions Linked…
US Military Reaches Deals With 7 Tech Companies to Use Their AI on Classified Systems
Google, Microsoft, Amazon Web Services, Nvidia, OpenAI, Reflection and SpaceX will provide resources to help augment warfighter decision-making in complex operational environments,” the Defense Department said. The post US Military Reaches Deals With 7 Tech Companies to Use Their AI…
[un]prompted 2026 – The Parseltongue Protocol: Textual Obfuscation Methods
Author, Creator & Presenter: Joey Melo, AI Red Teaming Specialist At CrowdStrike Our thanks to [un]prompted for publishing their Creators, Authors and Presenter’s outstanding [un]prompted 2026 AI Security Practitioner content on the Organizations’ YouTube Channel. Permalink The post [un]prompted 2026…
IT Security News Hourly Summary 2026-05-03 18h : 2 posts
2 posts were published in the last hour 15:38 : U.S. CISA adds a flaw in WebPros cPanel to its Known Exploited Vulnerabilities catalog 15:38 : Securing AI procurement and third-party models: a practical guide for UK SMEs