Stay secure with the latest email security updates, best practices, and threat alerts to protect your inbox and sensitive information.
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Background for this topic.
Email is a system for exchanging digital messages, typically using mail servers and clients over a network. In security, it includes both the messages and the accounts, servers, domains, and authentication mechanisms that handle them. Email commonly carries phishing links, malicious attachments, and fraudulent requests for payments or credentials; compromised accounts can also be used to impersonate trusted people and conduct further attacks.
Defenses include filtering and malware scanning, phishing-resistant multifactor authentication, careful handling of links and attachments, and monitoring for unusual login or sending activity. Domain controls such as SPF, DKIM, and DMARC help receiving systems detect messages that are forged or sent without authorization, while encryption protects message contents in transit or at rest when correctly implemented. Security teams should preserve relevant headers and mailbox activity so suspicious messages can be investigated, removed, and used to identify affected accounts and other recipients.
Microsoft resolved an issue that caused the new Outlook email client to crash when users clicked a button designed to switch back to classic Outlook. [...]
Cybersecurity researchers have shed light on a new phishing-as-a-service (PhaaS) platform that leverages the Domain Name System (DNS) mail exchange (MX) records to serve fake login pages that impersonate about 114 brands
The union received a spoofed email that led to the loss of $6.4 million, much of it transferred to other accounts or to a cryptocurrency exchange.
A new cybercrime platform named 'Atlantis AIO' provides an automated credential stuffing service against 140 online platforms, including email services, e-commerce sites, banks, and VPNs. [...]
Threat actors are exploiting cloud platforms like Adobe and Dropbox to evade email gateways and steal credentials
Large Health Data Breach Started With Phishing Lure in Employees' EmailTennessee-based Numotion, one of the largest U.S. providers of wheelchairs and other health-related mobility products is notifying nearly 500,000 people of a 2024 email hacking incident that potentially compromised their personal and health-related information.