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Help Net Security

Cybersecurity news with a focus on enterprise security. Discover what matters in the world of information security today.

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  • Aug 16, 2026earliest in window
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News

Help Net Security
helpnetsecurity.com > 09/08/2026 > vishing-microsoft-365-data-theft-extortion

IT help-desk vishing tricks executives into handing over Microsoft 365 access

5+ day, 11+ hour ago   (394+ words) IT help-desk vishing calls, stolen session tokens, and sign-ins routed through residential proxies are behind a wave of data theft and extortion against Microsoft 365 and other SaaS accounts, according to Arctic Wolf. The company is tracking the activity under the…...

Help Net Security
helpnetsecurity.com > 09/01/2026 > spring-ring-vishing-campaign-microsoft-teams

Vishing campaign abuses Microsoft Teams to give attackers a foothold in company networks

1+ week, 5+ day ago   (462+ words) A coordinated voice-phishing (vishing) campaign, named Spring Ring, used fake IT support accounts on Microsoft Teams to trick employees into installing malware or granting remote access to their computers, according to Unit 42, Palo Alto Networks’ threat intelligence team. The campaign…...

Help Net Security
helpnetsecurity.com > 08/23/2026 > week-in-review-records-allegedly-stolen-from-azure-tenants-medusa-ransomware-hits-500-orgs

Week in review: Records allegedly stolen from Azure tenants, Medusa ransomware hits 500+ orgs

3+ week, 15+ hour ago   (1210+ words) Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: Windows 11’s strongest security defenses can be bypassed without a screwdriver Researchers from the University of Birmingham and Durham University have found a way to…...