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37 result(s) for "Outlook" — best match first.

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The security stories that matter, explained by our team — with the concrete steps to take.

Latest headlines from security outlets

Collected every two hours from specialised publications — each link leads to the original article.

The Hacker News
The Hacker News Vulnerabilities

Microsoft Patches 1,259 Flaws, Including Exploited Outlook Bug That May Expose NTLMv2 Hashes

Microsoft on Tuesday released patches for a total of 1,259 vulnerabilities spanning its software portfolio, the second consecutive month where the patch volume…

Windows Microsoft 365

BleepingComputer
BleepingComputer Vulnerabilities

Microsoft November 2026 Patch Tuesday fixes 1,235 flaws, Outlook zero-day

Today is Microsoft's November 2026 Patch Tuesday, with security updates addressing a record-breaking 1,235 flaws, including one actively exploited Microsoft Ou…

Microsoft 365

The Hacker News
The Hacker News Breaches & leaks

Warlock Exploits SharePoint Flaws to Disable Security Tools and Deploy Ransomware

The suspected China-linked threat actor known as Warlock is still continuing to weaponize Microsoft SharePoint vulnerabilities, likely both old and new, in att…

Microsoft 365

The Hacker News
The Hacker News Breaches & leaks

CISA Warns of Zimbra, SharePoint Flaw Exploits; Cisco Zero-Day Hit in Ransomware Attacks

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has urged government agencies to apply patches for two security flaws impacting Synacor Zimbra…

Microsoft 365 Cisco

The Hacker News
The Hacker News Breaches & leaks

Storm-2603 Exploits SharePoint Flaws to Deploy Warlock Ransomware on Unpatched Systems

Microsoft has revealed that one of the threat actors behind the active exploitation of SharePoint flaws is deploying Warlock ransomware on targeted systems.The…

Microsoft 365

The Hacker News
The Hacker News Vulnerabilities

Microsoft Releases Urgent Patch for SharePoint RCE Flaw Exploited in Ongoing Cyber Attacks

Microsoft on Sunday released security patches for an actively exploited security flaw in SharePoint and also disclosed details of another vulnerability that it…

Microsoft 365

The Hacker News
The Hacker News Breaches & leaks

Zero-Click AI Vulnerability Exposes Microsoft 365 Copilot Data Without User Interaction

A novel attack technique named EchoLeak has been characterized as a "zero-click" artificial intelligence (AI) vulnerability that allows bad actors to exfiltrat…

Microsoft 365

Latest Hacking News | Cyber Security News, Hacking Tools and Penetration Testing Courses
Latest Hacking News | Cyber Security News, Hacking Tools and Penetration Testing Courses Vulnerabilities

CISA Warns Of Actively Exploited Vulnerability In Microsoft Outlook

Despite the fix being available, the delays in patching devices allowed the threat actors to…CISA Warns Of Actively Exploited Vulnerability In Microsoft Outloo…

Microsoft 365

The Hacker News
The Hacker News Vulnerabilities

CISA Warns of Active Exploitation of Microsoft SharePoint Vulnerability (CVE-2024-38094)

A high-severity flaw impacting Microsoft SharePoint has been added to the Known Exploited Vulnerabilities (KEV) catalog by the U.S. Cybersecurity and Infrastru…

Microsoft 365

The Hacker News
The Hacker News Vulnerabilities

CISA Warns: Hackers Actively Attacking Microsoft SharePoint Vulnerability

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a security flaw impacting Microsoft Sharepoint Server to its Known Exploited Vulnera…

Microsoft 365

The Hacker News
The Hacker News Breaches & leaks

Researchers Uncover How Outlook Vulnerability Could Leak Your NTLM Passwords

A now-patched security flaw in Microsoft Outlook could be exploited by threat actors to access NT LAN Manager (NTLM) v2 hashed passwords when opening a special…

Microsoft 365

The Hacker News
The Hacker News Vulnerabilities

Act Now: CISA Flags Active Exploitation of Microsoft SharePoint Vulnerability

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a critical security vulnerability impacting Microsoft SharePoint Server to its Known…

Microsoft 365

The Hacker News
The Hacker News Breaches & leaks

Microsoft Warns of Kremlin-Backed APT28 Exploiting Critical Outlook Vulnerability

Microsoft on Monday said it detected Kremlin-backed nation-state activity exploiting a now-patched critical security flaw in its Outlook email service to gain …

Microsoft 365 Exchange

The Hacker News
The Hacker News Breaches & leaks

Microsoft Warns of Stealthy Outlook Vulnerability Exploited by Russian Hackers

Microsoft on Friday shared guidance to help customers discover indicators of compromise (IoCs) associated with a recently patched Outlook vulnerability.Tracked…

Microsoft 365

Latest Hacking News
Latest Hacking News Vulnerabilities

New Exploit Emerges For A Previously Patched SharePoint Vulnerability

Months after Microsoft patched a remote code execution vulnerability in SharePoint, a new way to…New Exploit Emerges For A Previously Patched SharePoint Vulner…

Microsoft 365

Latest Hacking News
Latest Hacking News Vulnerabilities

Spoofing Vulnerability Found In Microsoft Outlook For Android

Microsoft recently disclosed a vulnerability in Outlook for Android that risked millions of devices. Exploiting the bug could permit cross-siteSpoofing Vulnera…

Microsoft 365 Android

The Hacker News
The Hacker News Vulnerabilities

Microsoft Issues Patches for SharePoint Zero-Day and 168 Other New Vulnerabilities

Microsoft on Tuesday released updates to address a record 169 security flaws across its product portfolio, including one vulnerability that has been actively e…

Microsoft 365

The Hacker News
The Hacker News Vulnerabilities

Weekly Recap: Outlook Add-Ins Hijack, 0-Day Patches, Wormable Botnet & AI Malware

This week’s recap shows how small gaps are turning into big entry points. Not always through new exploits, often through tools, add-ons, cloud setups, or workf…

Microsoft 365

The Hacker News
The Hacker News Breaches & leaks

Storm-0501 Exploits Entra ID to Exfiltrate and Delete Azure Data in Hybrid Cloud Attacks

The financially motivated threat actor known as Storm-0501 has been observed refining its tactics to conduct data exfiltration and extortion attacks targeting …

Microsoft 365 Azure

The Hacker News
The Hacker News Vulnerabilities

⚡ Weekly Recap: Airline Hacks, Citrix 0-Day, Outlook Malware, Banking Trojans and more

Ever wonder what happens when attackers don’t break the rules—they just follow them better than we do? When systems work exactly as they’re built to, but that …

Microsoft 365 Citrix

The Hacker News
The Hacker News Vulnerabilities

Microsoft Outlook Flaw Exploited by Russia's APT28 to Hack Czech, German Entities

Czechia and Germany on Friday revealed that they were the target of a long-term cyber espionage campaign conducted by the Russia-linked nation-state actor know…

Microsoft 365

The Hacker News
The Hacker News Vulnerabilities

Microsoft Fixes New Azure AD Vulnerability Impacting Bing Search and Major Apps

Microsoft has patched a misconfiguration issue impacting the Azure Active Directory (AAD) identity and access management service that exposed several "high-imp…

Microsoft 365 Azure

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

OpenSSF Outlook Q1 2023: How To Avoid the Next Log4Shell and Other OSS Security Reflections

''Log4j has been around for 20 years; it's become embedded into nearly every meaningful Java application; and the Log4Shell event led to compromises in everyth…

Microsoft 365

The Record
The Record Vulnerabilities

Microsoft’s Patch Tuesday surpasses 1,000 bugs for second month in a row

An exploited Outlook vulnerability drew most of the attention in Microsoft's latest Patch Tuesday, which listed 1,093 bugs total.

Microsoft 365