email security
Cisco fixes AsyncOS vulnerability exploited in zero-day attacks (CVE-2025-20393)
Cisco has finally shipped security updates for its Email Security Gateway and Secure Email and Web Manager devices, which fix CVE-2025-20393, a vulnerability in the …
What security teams miss in email attacks
Email remains the most common entry point for attackers. This article examines how phishing, impersonation, and account takeover continue to drive email breaches and expose …
Cisco email security appliances rooted and backdoored via still unpatched zero-day
A suspected Chinese-nexus threat group has been compromising Cisco email security devices and planting backdoors and log-purging tools on them since at least late November …
Email blind spots are back to bite security teams
The threat landscape is forcing CISOs to rethink what they consider normal. The latest Cybersecurity Report 2026 by Hornetsecurity, based on analysis of more than 70 billion …
Humans built the problem, AI just scaled it
Information moves across cloud platforms, personal devices, and AI tools, often faster than security teams can track it. Proofpoint’s 2025 Data Security Landscape report shows …
CISA and partners take action as Microsoft Exchange security risks mount
In partnership with international cybersecurity agencies, the US Cybersecurity and Infrastructure Security Agency (CISA) and the National Security Agency (NSA) outlined …
Email breaches are the silent killers of business growth
78% of organizations were hit by an email breach in the past 12 months, according to the Email Security Breach Report 2025 by Barracuda. Phishing, impersonation, and account …
Proxmox Mail Gateway: Open-source email security solution reaches version 9.0
First released in 2005, the open-source Proxmox Mail Gateway has become a widely adopted mail proxy, positioned between the firewall and the internal mail server to stop …
How attackers poison AI tools and defenses
Cyberattackers are using generative AI to draft polished spam, create malicious code and write persuasive phishing lures. They are also learning how to turn AI systems …
Libraesva ESG zero-day vulnerability exploited by attackers (CVE-2025-59689)
Suspected state-sponsored attackers have exploited a zero-day vulnerability (CVE-2025-59689) in the Libraesva Email Security Gateway (ESG), the Italian email security company …
The state of DMARC adoption: What 10M domains reveal
In this Help Net Security video, John Wilson, Senior Fellow, Threat Research at Fortra, explores the state of DMARC adoption across the top 10 million internet domains. He …
For $40, you can buy stolen police and government email accounts
Active police and government email accounts are being sold on the dark web for as little as $40, giving cybercriminals a direct line into systems and services that rely on …
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