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Security researchers have released a proof-of-concept (PoC) exploit for CVE-2024-21413, a critical remote code execution vulnerability in Microsoft Outlook dubbed “MonikerLink.” This flaw enables attackers to execute arbitrary code on victi…
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Cybersecurity researchers have unveiled comprehensive detection methodologies for NotDoor, a sophisticated backdoor malware that leverages Microsoft Outlook macros for covert command and control operations. The malware, attributed to the Russian state-…
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Threat actors are systematically compromising Outlook and Google mailboxes with alarming success, leveraging sophisticated techniques that sidestep traditional email defenses entirely. According to VIPRE’s Q3 2025 Email Threat Report, over 90% of…
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The notorious SideWinder APT group has intensified its credential harvesting operations across South Asia, deploying sophisticated phishing campaigns that target government, defense, and critical infrastructure organizations through fake webmail portal…
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Microsoft has confirmed it is investigating a significant bug in the classic Outlook for Windows desktop client that causes the application to fail upon launch. The issue, which appears to be linked to Microsoft Exchange logon attempts, prevents users from accessing their mailboxes and displays a critical error message, disrupting daily workflows for affected individuals […] The post Microsoft Outlook for Windows Bug Leads to Crash While Opening Email appeared first on Cyber Security News.
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Microsoft is actively investigating and addressing widespread errors preventing users from accessing their mailboxes on Outlook.com. The company has been providing regular updates throughout the day, indicating that targeted infrastructure restarts are gradually restoring service. The issue, which began early on October 1, 2025, affects users attempting to log in or access their emails via […] The post Microsoft Investigating Widespread Outlook.com Outage Preventing Mailbox Access appeared first on Cyber Security News.
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A sophisticated espionage campaign leveraging a previously unknown malware strain dubbed GONEPOSTAL, attributed to the notorious Russian state-sponsored group KTA007, better known as Fancy Bear or APT28. The malware transforms Microsoft Outlook into a …
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Security researchers revealed that three unauthorized TLS certificates were issued in May 2025 for 1.1.1.1, the widely used public DNS service run by Cloudflare and APNIC. These certificates, improperly issued by the Fina RDC 2020 certificate authority…
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Russian state-sponsored hackers have developed a sophisticated new backdoor malware called “NotDoor” that specifically targets Microsoft Outlook users, enabling attackers to steal sensitive data and gain complete control over compromised sy…
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