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.
Email at many organizations has stopped working; the tech giant has advised users who are facing the issue to uninstall the updates so that it can address flaw.
Microsoft has paused the November 2024 Exchange security updates released during this month's Patch Tuesday because of email delivery issues on servers using custom mail flow rules. [...]
'Wirte' Threat Actor Used Wiper That Checks if Victim Is Located in IsraelHackers likely connected to Palestinian militants Hamas were behind wiper attacks detected in October against Israeli organizations including hospitals and municipalities. Israeli cybersecurity firm Check Point on Tuesday attributed the attacks to a group tracked as Wirte.
Marketed on a cybercriminal forum, the $700 tool harvests email addresses from public GitHub profiles, priming cyberattackers for further credential theft, malware delivery, OAuth subversion, supply chain attacks, and other corporate breaches.
Cybersecurity researchers are calling attention to a new sophisticated tool called GoIssue that can be used to send phishing messages at scale targeting GitHub users
Just because it's .gov doesn't mean that email is trustworthy Cybercrooks abusing emergency data requests in the US isn't new, but the FBI says it's becoming a more pronounced issue as the year draws to a close.…