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Aujourd’hui — 23 janvier 2026Securité

CISA Updates KEV Catalog with Four Actively Exploited Software Vulnerabilities

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added four security flaws to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation in the wild. The list of vulnerabilities is as follows - CVE-2025-68645 (CVSS score: 8.8) - A PHP remote file inclusion vulnerability in Synacor Zimbra Collaboration Suite (ZCS) that could allow a

Fortinet Confirms Active FortiCloud SSO Bypass on Fully Patched FortiGate Firewalls

Fortinet has officially confirmed that it's working to completely plug a FortiCloud SSO authentication bypass vulnerability following reports of fresh exploitation activity on fully-patched firewalls. "In the last 24 hours, we have identified a number of cases where the exploit was to a device that had been fully upgraded to the latest release at the time of the attack, which suggested a new

TikTok Forms U.S. Joint Venture to Continue Operations Under 2025 Executive Order

TikTok on Friday officially announced that it formed a joint venture that will allow the hugely popular video-sharing application to continue operating in the U.S. The new venture, named TikTok USDS Joint Venture LLC, has been established in compliance with the Executive Order signed by U.S. President Donald Trump in September 2025, the platform said. The new deal will see TikTok's Chinese

Phishing Attack Uses Stolen Credentials to Install LogMeIn RMM for Persistent Access

Cybersecurity researchers have disclosed details of a new dual-vector campaign that leverages stolen credentials to deploy legitimate Remote Monitoring and Management (RMM) software for persistent remote access to compromised hosts. "Instead of deploying custom viruses, attackers are bypassing security perimeters by weaponizing the necessary IT tools that administrators trust," KnowBe4 Threat

Rapport sur le phishing KnowBe4 : les objets d’e-mails avec le nom de son entreprise enregistrent les taux de clics les plus élevés

Par : UnderNews
23 janvier 2026 à 10:27

Le récapitulatif des simulations de phishing du 4ème trimestre 2025 révèle que les e-mails contenant le nom de l’entreprise enregistrent les taux de clics les plus élevés, tandis que l’usurpation de domaine apparaît dans près de 90 % des attaques les plus cliquées. Tribune – KnowBe4, la plateforme de référence en gestion des risques humains […]

The post Rapport sur le phishing KnowBe4 : les objets d’e-mails avec le nom de son entreprise enregistrent les taux de clics les plus élevés first appeared on UnderNews.

Fortinet : une faille mal bouchée déclenche une vague de cyberattaques contre des entreprises

23 janvier 2026 à 10:40

Les pare-feu Fortinet FortiGate, déployés dans des milliers d’entreprises et d’administrations à travers le monde, sont actuellement la cible d’une vaste campagne de cyberattaques automatisées. Ce qui inquiète particulièrement l’écosystème cyber : des correctifs avaient déjà été publiés pour contrer ce type d’attaques.

Microsoft Flags Multi-Stage AitM Phishing and BEC Attacks Targeting Energy Firms

Microsoft has warned of a multi‑stage adversary‑in‑the‑middle (AitM) phishing and business email compromise (BEC) campaign targeting multiple organizations in the energy sector. "The campaign abused SharePoint file‑sharing services to deliver phishing payloads and relied on inbox rule creation to maintain persistence and evade user awareness," the Microsoft Defender Security Research Team said.

New Osiris Ransomware Emerges as New Strain Using POORTRY Driver in BYOVD Attack

Cybersecurity researchers have disclosed details of a new ransomware family called Osiris that targeted a major food service franchisee operator in Southeast Asia in November 2025. The attack leveraged a malicious driver called POORTRY as part of a known technique referred to as bring your own vulnerable driver (BYOVD) to disarm security software, the Symantec and Carbon Black Threat Hunter

Hier — 22 janvier 2026Securité

Critical GNU InetUtils telnetd Flaw Lets Attackers Bypass Login and Gain Root Access

A critical security flaw has been disclosed in the GNU InetUtils telnet daemon (telnetd) that went unnoticed for nearly 11 years. The vulnerability, tracked as CVE-2026-24061, is rated 9.8 out of 10.0 on the CVSS scoring system. It affects all versions of GNU InetUtils from version 1.9.3 up to and including version 2.7. "Telnetd in GNU Inetutils through 2.7 allows remote authentication bypass

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