Microsoft: Outlook clients not syncing over Exchange ActiveSync
Microsoft warned Outlook for Microsoft 365 users that clients might have issues connecting to email servers via Exchange ActiveSync after a January update. [...]
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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 warned Outlook for Microsoft 365 users that clients might have issues connecting to email servers via Exchange ActiveSync after a January update. [...]
That listing for a gig that looked too good to be true may have been carrying SQL injection code Singapore-based infosec firm Group-IB has detected a group that spent the last two months of 2023 stealing personal info from websites operated by jobs boards and retailers websites across Asia.…
The use of QR codes to deliver malicious payloads jumped in Q4 2023, especially against executives, who saw 42 times more QR code phishing than the average employee.
OnDemand | The Tools & Technology You Need to Meet Google/Yahoo Email Authentication RequirementsOur email authentication experts will be on hand to provide their insight and a demonstration of how exactly Proofpoint Email Fraud Defense can help identify and close requirement gaps.
Cyberattacks on Pediatric Facilities Are Rare But Considered Especially EgregiousNetwork systems - including phones, email, electronic health records and patient portals - remain offline at a Chicago children's hospital and research center nearly a week after it was hit by a cyberattack. Such incidents targeting entities that cater to kids are especially egregious, experts say.