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.
Banking and financial services organizations are the targets of a new multi-stage adversary-in-the-middle (AitM) phishing and business email compromise (BEC) attack, Microsoft has revealed
Google's blue tick proves untrustworthy Google says it has fixed a flaw that allowed a scammer to impersonate delivery service UPS on Gmail, after the data-hoarding web behemoth labeled the phony email as authentic.…
That patch we issued? Yeah, it wasn't enough Barracuda has now told customers to "immediately" replace infected Email Security Gateway (ESG) appliances — even if they have received a patch to fix a critical bug under exploit.…
It's not often that a zero-day vulnerability causes a network security vendor to urge customers to physically remove and decommission an entire line of affected hardware -- as opposed to just applying software updates. But experts say that is exactly what transpired this week with Barracuda Networks, as the company struggled to combat a sprawling malware threat which appears to have undermined its email security appliances in such a fundamental way that they can no longer be safely updated with software fixes.
Enterprise security company Barracuda is now urging customers who were impacted by a recently disclosed zero-day flaw in its Email Security Gateway (ESG) appliances to immediately replace them
Email and network security company Barracuda warns customers they must replace Email Security Gateway (ESG) appliances hacked in attacks targeting a now-patched zero-day vulnerability. [...]
One of the most expensive aspects of any cybercriminal operation is the time and effort it takes to create large numbers of new throwaway email accounts. Now a new service offers to help dramatically cut costs associated with large-scale spam and account creation campaigns, by paying people to sell their email account credentials and letting customers temporarily rent access to a vast pool of established accounts at major providers.
AI is beefing up the cyber arsenals of both attackers and defenders Sponsored Feature Email is a popular target for cybercriminals, offering an easy way of launching an attack disguised as an innocent message. One moment of inattention on the part of the recipient and the door is open to malware, spam, phishing, perhaps even a dose of the dreaded ransomware. Entire organisations can suffer, not just individual victims.…