Over 20,000 vulnerable Microsoft Exchange servers exposed to attacks
Tens of thousands of Microsoft Exchange email servers in Europe, the U.S., and Asia exposed on the public internet are vulnerable to remote code execution flaws. [...]
Stay secure with the latest email security updates, best practices, and threat alerts to protect your inbox and sensitive information.
Search across headline titles and summaries.
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.
Tens of thousands of Microsoft Exchange email servers in Europe, the U.S., and Asia exposed on the public internet are vulnerable to remote code execution flaws. [...]
Big Overlap With Symantec Makes Carbon Black Redundant, Though Buyers May Be SparseIt looks as if Carbon Black's days as part of Broadcom are numbered. Broadcom CEO Hock Tan told staff at newly acquired VMware in both an email and town hall meeting that he plans to "review strategic alternatives." The move comes just four years after VMware purchased Carbon Black for $2.1 billion.
Cybercriminals use legal search terms to ensnare unwitting victims, then launch ransomware or business email compromise attacks.
Pro tip: Don't use your new work email to phish your old firm An ex-Motorola technician in the US has admitted he tried to fraudulently obtain a passport while awaiting trial for a cyberattack on his former employer.…
When KrebsOnSecurity broke the news on Oct. 20, 2023 that identity and authentication giant Okta had suffered a breach in its customer support department, Okta said the intrusion allowed hackers to steal sensitive data from fewer than one percent of its 18,000+ customers. But today, Okta revised that impact statement, saying the attackers also stole the name and email address for nearly all of its customer support users.
Identity services provider Okta has disclosed that it detected "additional threat actor activity" in connection with the October 2023 breach of its support case management system
If forecasters are right, over the course of today, consumers will spend $13.7 billion. Just about every click, sale, and engagement will be captured by a CRM platform. Inventory applications will trigger automated re-orders; communication tools will send automated email and text messages confirming sales and sharing shipping information. SaaS applications supporting retail efforts will host