Microsoft: Phishing attack targets accountants as Tax Day approaches
Microsoft is warning of a phishing campaign targeting accounting firms and tax preparers with remote access malware allowing initial access to corporate networks. [...]
Phishing uses deceptive messages to steal credentials or deliver malware, while user verification, MFA, and email filtering reduce the risk.
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Background for this topic.
Phishing is deceptive communication—by email, text, phone, or a fake website—that impersonates a trusted person or service to make someone disclose credentials, approve a transaction, reveal sensitive information, or run harmful software. Attackers use it to bypass technical controls by persuading a legitimate user to perform an action, and may target employees, customers, administrators, or suppliers.
Its impact can include account takeover, unauthorized payments, exposure of personal or business data, and access to internal systems. The most effective control for stolen-password phishing is phishing-resistant multi-factor authentication, such as hardware-backed passkeys or security keys, which binds authentication to the legitimate site. Organizations should also filter and authenticate messaging where possible, use password managers, restrict risky actions, train users to verify unusual requests through a separate channel, and provide rapid reporting so suspected credentials or sessions can be revoked.
Microsoft is warning of a phishing campaign targeting accounting firms and tax preparers with remote access malware allowing initial access to corporate networks. [...]
Security researchers at eSentire shared the findings in an advisory published on Monday
In today's perilous cyber risk landscape, CISOs and CIOs must defend their organizations against relentless cyber threats, including ransomware, phishing, attacks on infrastructure, supply chain breaches, malicious insiders, and much more. Yet at the same time, security leaders are also under tremendous pressure to reduce costs and invest wisely. One of the most effective ways for CISOs and