email security

A new high-severity security vulnerability is causing alarm among businesses that utilize hybrid Microsoft Exchange deployments, as both Microsoft and the US Cybersecurity and Infrastructure Security Agency (CISA) issue urgent advisories. This flaw—affecting Exchange Server 2016, 2019, and the...

Threat actors have escalated their tactics by exploiting the Microsoft 365 Direct Send feature, fundamentally altering the landscape of email-based cyber attacks. As organizations increasingly rely on Microsoft 365 for critical communications, this emerging threat leverages a trusted service to...

Microsoft has unveiled its new AI-powered Phishing Triage Agent within Microsoft Defender, now available in public preview, marking a significant evolution in the way organizations approach email threat detection and response. As cyber threats continue to escalate in complexity and volume...

A high-severity security vulnerability has emerged at the heart of countless enterprise communications: Microsoft has issued a warning about a flaw in hybrid Exchange Server deployments that could give cyber attackers undetected escalated access to Exchange Online—potentially undermining the...

Cybersecurity in the corporate realm now sits at the top of IT agendas for organizations of all sizes, as email remains the most common vector for threats like phishing, ransomware, and sophisticated malware attachments. Microsoft Exchange Online Protection (EOP) has long held dominance due to...

A critical security update has emerged for organizations leveraging Microsoft Exchange Server in hybrid cloud environments, as CVE-2025-53786 exposes a significant elevation of privilege vulnerability. On April 18th, 2025, Microsoft not only published important security changes for hybrid...

A new wave of targeted phishing attacks is sweeping through organizations, exploiting a legitimate Microsoft 365 feature to wreak havoc from inside the trusted walls of enterprise email. Security researchers have recently uncovered threat actors using the Microsoft 365 “Direct Send” capability...

An alarming new wave of cybercrime has emerged, leveraging the very security tools designed to shield organizations from harm. Recent research reveals that phishing actors are now abusing link-wrapping and URL-rewriting services—trusted pillars of enterprise email protection—to sneak malicious...

In a significant move to bolster cyber resilience for Microsoft 365 users, Rubrik and Sophos have announced a strategic partnership aimed at delivering an integrated backup and recovery solution. This collaboration introduces "Sophos M365 Backup and Recovery Powered by Rubrik," marking the first...

Cybersecurity researchers have uncovered a sophisticated phishing campaign exploiting Microsoft 365's Direct Send feature to deliver internal-looking emails without authentication. This method allows attackers to bypass traditional email security measures, posing significant risks to...

Cybercriminals have ramped up efforts to exploit Microsoft 365’s Direct Send feature and unsecured SMTP relays, launching sophisticated phishing campaigns that masquerade as internal company emails—placing even vigilant organizations at substantial risk. According to recent research by...

A new wave of cyberattacks has exposed a dangerous flaw in trusted email security services, as hackers have successfully exploited protective link-wrapping features to orchestrate large-scale phishing campaigns targeting Microsoft 365 logins. By hijacking the mechanisms designed to keep users...

Cloudflare has issued a stark warning about a new and highly sophisticated wave of phishing attacks targeting Microsoft 365 users, drawing attention to a dangerous exploitation of a trusted email security feature: link wrapping. In recent weeks, both enterprise and consumer accounts have come...

A wave of highly sophisticated phishing attacks has put Microsoft 365 users—and the very foundations of modern email security—at risk, exposing a perilous paradox: the same technologies designed to protect cloud productivity platforms are now being systematically exploited to facilitate...

A sophisticated phishing campaign exploiting trusted email security tools has rattled the cybersecurity landscape, exposing a dismally clever strategy that turns protective mechanisms into attack vectors. Between June and July 2025, researchers at Cloudflare uncovered an operation wherein...

Attackers have found a chillingly effective way to subvert defenses integrated into the heart of enterprise email security. According to new research from Cloudflare, threat actors are actively exploiting “link wrapping” services—offered by reputable vendors like Proofpoint and Intermedia—to...

Cybercriminals are once again redefining the threat landscape, this time by exploiting trusted email security mechanisms to compromise Microsoft 365 accounts. In a sophisticated new campaign, threat actors have weaponized link-wrapping services—previously considered pillars of safe email...

Cybercriminals have once again proven their adaptability by leveraging trusted technology—from cybersecurity companies themselves—to bypass email defenses and target Microsoft 365 users. In a revealing discovery, threat actors have been exploiting link-wrapping services from well-known vendors...

Leveraging trusted internal channels has long been a gold standard for cybercriminals seeking to evade organizational defenses, but a recent campaign uncovered by Proofpoint signals a new level of ingenuity in exploiting a familiar Microsoft 365 feature: Direct Send. This functionality, designed...

As cyber threats continue to evolve, organizations leveraging cloud-based productivity suites like Microsoft 365 face novel forms of attack that exploit the platform’s very architecture. Recently, security researchers unveiled a troubling trend: hackers are weaponizing Microsoft 365’s Direct...