Mimecast, which provides email management systems, updates that the hacker was able to hack into the company’s systems and access customer information.
According to the company, the hacker was able to gain access to a certificate used to identify Mimecast services located on Microsoft’s server.
The company also states that all customers who may have been harmed have been updated and it also asks all customers of the company to replace the existing certificate in their possession with a new certificate issued by the company.
The breach was identified by Microsoft, which updated Mimecast that an unidentified source accessed the company’s servers.
According to DZNet: Mimecast says hackers abused one of its certificates to access Microsoft accounts.
Mimecast, a provider of email management software, said learned of the security incident from Microsoft.
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💡 Hackers are targeting AI chat sessions to access confidential strategies, financial data, and employee information.
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🔗 Free Supply Chain Risk Checkers You’ll Actually Use 🔗
Supply chain attacks are skyrocketing – and a single weak link can cost millions. The good news? There are free tools CISOs can use immediately to monitor suppliers, dependencies, and third-party risks.
Here are the top free supply chain risk checkers:
1️⃣ RiskRecon Free Tier – Evaluate vendor security posture and get actionable insights.
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2️⃣ OWASP Dependency-Check – Scans project dependencies for known vulnerabilities.
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3️⃣ Sonatype OSS Index – Identifies vulnerable open-source components in your software supply chain.
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4️⃣ CISA Supplier Risk Resources – Free guidance and tools for assessing critical suppliers.
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5️⃣ Snyk Free Tier – Detects vulnerabilities in open-source dependencies and container images.
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6️⃣ WhiteSource Bolt (Free) – Integrated vulnerability scanner for DevOps pipelines.
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7️⃣ CycloneDX Tools – Open-source Software Bill of Materials (SBOM) generation for tracking components.
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At AUMINT.io, we simulate social engineering attacks targeting suppliers and employees to uncover hidden supply chain risks that purely technical tools miss.
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