Search: “Outlook Web”

268 stories

Searchkeyword smart Sortlatest hot importance relevance

DomainAll Cyber AIWindow24h 3d 7d 30d AllIn the wild Important only Show duplicates

CategoryAll Vulnerability 160 Malware 143 Ransomware 112 Threat actor 67 Exploit / PoC 57 Phishing & fraud 47 Data breach 45 Industry 11 Advisory 7 AI industry 4 AI tools & infra 4 Policy & legal 4 Research 2 Tools 2

SeverityAll critical 268 high 206 medium 151 low 29 info 13

RussianTA488 Returns With Persistent Outlook Web Access Attack

Infosecurity MagazineJul 29, 15:10 UTC · Jul 29, 2026Exploit / PoC CVE-2026-42897

60

U.S. CISA adds a flaw in Microsoft Exchange Server to its Known Exploited Vulnerabilities catalog

Security AffairsMay 16, 17:31 UTC · May 16, 2026Exploit / PoC in the wildCVE-2026-42897

60

CVE-2026-42897: Microsoft confirms active exploitation of Exchange Server zero

Security AffairsMay 15, 14:04 UTC · May 15, 2026Vulnerability in the wildCVE-2026-42897 CVE-2023-215291

60

⚡ Weekly Recap: iPhone Spyware, Microsoft 0-Day, TokenBreak Hack, AI Data Leaks and More

The Hacker NewsOct 28, 08:29 UTC · Oct 28, 2025Malware in the wildCVE-2025-43200 CVE-2025-32711 CVE-2025-33053+24 CVEs2

60

Microsoft Patch Tuesday

Cisco TalosMar 14, 21:26 UTC · Mar 14, 2017Vulnerability in the wildCVE-2017-0149 CVE-2017-0012 CVE-2017-0037+1 CVEs

60

Patch Tuesday security updates for July 2026, the largest update ever. 621 CVEs in one month

Security AffairsJul 14, 21:33 UTC · Jul 14, 2026Vulnerability in the wildCVE-2026-56155 CVE-2026-56164 CVE-2026-57092+5 CVEs

60

Microsoft Patch Tuesday

Cisco TalosSep 8, 11:17 UTC · Sep 8, 2015Vulnerability CVE-2015-2542 CVE-2015-2513 CVE-2015-2514+19 CVEs

60

Discovering Exchange Servers: Leveling the Field Using Attack Surface Intelligence

Recorded FutureJun 27, 00:00 UTC · Jun 27, 2025Vulnerability CVE-2021-26855

60

A Deep Dive on the Recent Widespread DNS Hijacking Attacks

Krebs on SecurityFeb 18, 14:50 UTC · Feb 18, 2019Threat actor

60

At Least 30,000 U.S. Organizations Newly Hacked Via Holes in Microsoft’s Email Software

Krebs on SecurityMar 29, 08:27 UTC · Mar 29, 2021Exploit / PoC

60

SolarWinds hackers' capabilities include bypassing MFA

Help Net SecurityDec 16, 00:00 UTC · Dec 16, 2020Data breach

60

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

The Hacker NewsJun 10, 04:47 UTC · Jun 10, 2026Malware in the wildCVE-2025-6543 CVE-2025-5777 CVE-2025-49825+23 CVEs

60

⚡ Weekly Recap: Oracle 0-Day, BitLocker Bypass, VMScape, WhatsApp Worm & More

The Hacker NewsOct 6, 11:38 UTC · Oct 6, 2025Ransomware CVE-2025-61882 CVE-2025-27915 CVE-2025-4008+16 CVEs

60

Russian State-Linked APT28 Exploits SOHO Routers in Global DNS Hijacking Campaign

The Hacker NewsApr 8, 16:11 UTC · Apr 8, 2026Threat actor CVE-2023-502241

60

China’s PLA Unit 61419 Purchasing Foreign Antivirus Products, Likely for Exploitation

Recorded FutureNov 21, 00:00 UTC · Nov 21, 2025Data breach

60

Microsoft Patch Tuesday

Cisco TalosJan 12, 21:17 UTC · Jan 12, 2016Vulnerability CVE-2016-0002 CVE-2016-0005 CVE-2016-0003+17 CVEs

60

Russian Hackers Exploit Microsoft OWA Flaw to Keep Mailbox Access After Credential Rotation

The Hacker NewsJul 30, 07:40 UTC · Jul 30, 2026Data breach CVE-2026-42897 CVE-2025-66376

60

No, I Did Not Hack Your MS Exchange Server

Krebs on SecurityMar 28, 18:16 UTC · Mar 28, 2021Exploit / PoC in the wild

60

Qualys brings web application security automation to a new level

Help Net SecurityFeb 13, 00:00 UTC · Feb 13, 2017Vulnerability

55

⚡ Weekly Recap: Proxy Botnet, Office Zero-Day, MongoDB Ransoms, AI Hijacks & New Threats

The Hacker NewsFeb 15, 00:00 UTC · Feb 15, 2026Exploit / PoC in the wildCVE-2026-21509 CVE-2026-1281 CVE-2026-1340

60

IR Trends Q1 2026: Phishing reemerges as top initial access vector, as attacks targeting public administration persist

Cisco TalosApr 22, 10:00 UTC · Apr 22, 2026Phishing & fraud

55

Microsoft Uncovers Sandworm Subgroup's Global Cyber Attacks Spanning 15+ Countries

The Hacker NewsFeb 15, 00:00 UTC · Feb 15, 2025Threat actor CVE-2024-1709 CVE-2023-48788 CVE-2021-34473+4 CVEs1

60

Sandworm APT's initial access subgroup hits organizations accross the globe

Help Net SecurityFeb 13, 00:00 UTC · Feb 13, 2025Threat actor CVE-2021-34473 CVE-2022-41352 CVE-2023-32315+4 CVEs1

60

Microsoft Bug Allowed Hackers to Breach Over Two Dozen Organizations via Forged Azure AD Tokens

The Hacker NewsJul 15, 00:00 UTC · Jul 15, 2023Exploit / PoC in the wild1

60

Laundry Bear's new Microsoft Exchange attack triggers on email open (CVE-2026-42897)

Help Net SecurityJul 30, 00:00 UTC · Jul 30, 2026Vulnerability CVE-2026-42897

60

A Basic Timeline of the Exchange Mass-Hack

Krebs on SecurityMar 8, 16:45 UTC · Mar 8, 2021Ransomware

60

Microsoft Updates August 2013

Kaspersky SecurelistAug 13, 22:10 UTC · Aug 13, 2013Vulnerability

55

Microsoft Exchange ProxyToken flaw can allow attackers to read your emails

Security AffairsAug 31, 10:16 UTC · Aug 31, 2021Exploit / PoC CVE-2021-33766

60

Microsoft Patch Tuesday — October 18: Vulnerability disclosures and Snort coverage

Cisco TalosOct 9, 18:38 UTC · Oct 9, 2018Vulnerability CVE-2018-8491 CVE-2018-8460 CVE-2018-8509+26 CVEs

60

Microsoft Patch Tuesday, March 2021 Edition

Krebs on SecurityMar 10, 05:36 UTC · Mar 10, 2021Vulnerability in the wildCVE-2021-26411

60

Microsoft recalls Exchange patch in the last Tuesday Update

Security AffairsDec 13, 13:55 UTC · Dec 13, 2014Vulnerability

55

Microsoft Patch Tuesday

Cisco TalosDec 12, 23:32 UTC · Dec 12, 2017Vulnerability in the wildCVE-2017-11886 CVE-2017-11888 CVE-2017-11889+31 CVEs

60

Threat actors scan Internet for Vulnerable Microsoft Exchange Servers

Security AffairsFeb 27, 08:05 UTC · Feb 27, 2020Threat actor CVE-2020-0688

60

Most organizations have yet to fix CVE-2020

Security AffairsMar 16, 20:00 UTC · Mar 16, 2020Exploit / PoC CVE-2020-0688

60

WARNING: New Unpatched Microsoft Exchange Zero

The Hacker NewsOct 3, 08:22 UTC · Oct 3, 2022Vulnerability in the wild1

60

⚡ Weekly Recap: Fiber Optic Spying, Windows Rootkit, AI Vulnerability Hunting and More

The Hacker NewsApr 15, 00:00 UTC · Apr 15, 2026Vulnerability in the wildCVE-2026-346212

60

Chinese hackers forged authentication tokens to breach government emails

Help Net SecurityJul 14, 19:08 UTC · Jul 14, 2023Exploit / PoC in the wild

60

August 2019 Patch Tuesday: Microsoft plugs critical wormable RDP holes

Help Net SecurityAug 14, 00:00 UTC · Aug 14, 2019Vulnerability CVE-2019-1181 CVE-2019-1182 CVE-2019-1222+10 CVEs

60

Spam and phishing in 2020

Kaspersky SecurelistFeb 15, 10:00 UTC · Feb 15, 2021Phishing & fraud

55

⚡ Weekly Recap: Rogue AI Models, $88M Bitcoin Theft, Water

The Hacker NewsAug 3, 14:03 UTC · Aug 3, 2026Data breach CVE-2026-42897 CVE-2026-66066

60