microsoft 365 security

For many organizations, the expectation is that internal communications on their Microsoft 365 tenants are inherently more trustworthy—after all, who would question an authentication-free email from the company’s own domain? Yet a recent investigation by the Varonis Managed Data Detection and...

In a sobering development for the cloud security landscape, new research has exposed how Microsoft 365’s Direct Send feature—a tool primarily designed for seamless internal communication—has become a significant vector for phishing attacks. As organizations of all sizes deepen their reliance on...

Phishing attacks continue to challenge organizations worldwide, evolving in sophistication and leveraging the very tools designed to enhance digital communication. An alarming new campaign has emerged wherein cybercriminals exploit Microsoft 365’s Direct Send feature—traditionally trusted for...

Hackers continue to evolve their tactics, and with sophisticated attacks targeting even the most mature enterprise technology stacks, the recent exploitation of Microsoft 365’s Direct Send feature underscores the persistent cat-and-mouse game between IT teams and cybercriminals. Direct Send, a...

A sophisticated phishing campaign has been exploiting Microsoft 365's Direct Send feature, targeting over 70 organizations across various sectors in the United States since May 2025. This attack underscores the evolving tactics of cybercriminals and highlights the need for organizations to...

Scaling new heights in the world of cloud security management, UK-based Inforcer has opted to plant its Nordic headquarters in the heart of Copenhagen. This strategic decision marks not merely an expansion, but a nuanced alignment with the unique needs of Managed Service Providers (MSPs) and...

Hornetsecurity has taken a significant stride in the cybersecurity domain with the introduction of its AI Cyber Assistant, a feature-packed evolution within its 365 Total Protection Plan 4 for Microsoft 365 environments. This latest innovation directly addresses the persistent challenges facing...

In an era defined by rapid digital transformation, organizations find themselves in an arms race against increasingly sophisticated cyber threats. Nowhere is this more acutely felt than within the Microsoft 365 ecosystem, whose omnipresence in enterprise workflows makes it a prime target for...

Password spraying attacks have become one of the most persistent and damaging techniques in the arsenal of modern cybercriminals, as demonstrated by a newly disclosed incident in which over 80,000 Microsoft Entra ID accounts were targeted using legitimate penetration testing tools. According to...

In recent months, the cybersecurity landscape has been rocked by a rapidly escalating campaign in which cybercriminals have weaponized TeamFiltration, a penetration testing tool, to orchestrate massive attacks on Office 365 accounts. According to incident data and credible analyses from leading...

Every IT administrator and Windows enthusiast marks the second Tuesday of each month with both anticipation and anxiety: Patch Tuesday remains a critical milestone in maintaining system security and integrity across millions of machines worldwide. This month’s release, however, is notable for...

In a landmark event that is sending ripples through the enterprise IT and cybersecurity landscapes, Microsoft has acted to patch a zero-click vulnerability in Copilot, its much-hyped AI assistant that's now woven throughout the Microsoft 365 productivity suite. Dubbed "EchoLeak" by cybersecurity...

Organizations across the globe are contending with a staggering rise in highly advanced phishing attacks that specifically target Microsoft 365 and Google accounts. At the heart of this surge is the Adversary-in-the-Middle (AitM) technique—a significant evolution in cybercriminal methodology...

In recent developments, cybersecurity researchers have uncovered a critical vulnerability in Microsoft Copilot, an AI-powered assistant integrated into Office applications such as Word, Excel, Outlook, and Teams. Dubbed "EchoLeak," this flaw enables attackers to exfiltrate sensitive data from a...

Outlook users are about to experience a new layer of email security as Microsoft expands its efforts to safeguard users from sophisticated attack vectors. In July, Microsoft will block two additional file attachment types—.library-ms and .search-ms—within Outlook, specifically targeting the...

Implementing Domain-based Message Authentication, Reporting, and Conformance (DMARC) in Microsoft 365 is a critical step toward enhancing email security by preventing domain spoofing and phishing attacks. However, the process is fraught with challenges that can complicate deployment and...

As the business world accelerates toward a fully digital, cloud-first model, Microsoft 365 (M365) stands as the productivity backbone of organizations ranging from nimble startups to sprawling global enterprises. Yet, with this reliance on cloud applications comes an often-overlooked reality...

Phishing attacks continue to evolve, leveraging not only increasingly sophisticated social engineering techniques but also the legitimate tools and platforms users trust every day. The most recent wave of attacks, as publicized by cybersecurity researchers and industry reports, reveals that...

Phishing attacks have long exploited trusted platforms to deceive users, and a recent campaign has brought to light a particularly insidious method: leveraging Google Apps Script to compromise Microsoft 365 accounts. This tactic underscores the evolving sophistication of cyber threats and the...

A new breed of cyber threats is rapidly transforming the landscape of enterprise security, and few recent campaigns illustrate this better than the large-scale, meticulously coordinated attacks attributed to Storm-1575, more commonly known as the Dadsec hacker group. Over the past year, Dadsec...