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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📊 CISOs: Essential Free Risk Assessment Templates 📊
Risk assessments are the backbone of any cybersecurity strategy. But building them from scratch takes time, effort, and expertise. Luckily, there are free templates that help CISOs identify, analyze, and mitigate risks efficiently.
Here’s a list of must-have free risk assessment templates for CISOs:
1️⃣ NIST Cybersecurity Framework Risk Assessment Template – Aligns risks to NIST CSF categories for structured analysis.
https://www.nist.gov/cyberframework
2️⃣ CISA Risk Assessment Templates – Ready-to-use templates for critical infrastructure and IT systems.
https://www.cisa.gov/publication/cyber-essentials-risk-assessment
3️⃣ ISO/IEC 27005 Risk Assessment Template – Comprehensive framework for information security risk management.
https://www.iso.org/standard/75281.html
4️⃣ SANS Security Policy Templates – Includes risk assessment worksheets for different business units.
https://www.sans.org/information-security-policy/
5️⃣ OWASP Risk Assessment Template – Focused on application and web security risks.
https://owasp.org/www-project-risk-assessment/
6️⃣ ISACA Risk IT Templates – Aligns IT risk with business objectives and compliance requirements.
https://www.isaca.org/resources
7️⃣ Cloud Security Alliance (CSA) Cloud Controls Matrix – Template for assessing cloud service provider risks.
https://cloudsecurityalliance.org/research/
Using these templates allows CISOs to standardize assessments, communicate risk effectively to stakeholders, and prioritize mitigation strategies.
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Top Cybersecurity Risks Threatening Healthcare in 2025
🏥 Healthcare Faces Rising Cybersecurity Threats
Ransomware, phishing, and unpatched software are putting hospitals and clinics at unprecedented risk. Sensitive patient data and critical medical systems are prime targets for cybercriminals.
Even small lapses in cybersecurity hygiene can lead to devastating consequences, from compromised patient safety to regulatory fines. Legacy systems and complex vendor networks amplify these vulnerabilities.
Proactive resilience is essential. Continuous monitoring, social engineering simulations, and comprehensive vendor risk assessments can identify threats before they escalate.
AUMINT.io equips healthcare organizations with advanced tools and insights to fortify defenses, mitigate risk, and train staff to recognize and respond to attacks.
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🛡 Free Cloud Security Tools CISOs Can Implement Today 🛡
Cloud environments are expanding fast, but so are the risks. You don’t need a huge budget to secure workloads, monitor activity, and reduce misconfigurations.
Here’s a list of free cloud security tools every CISO should explore:
1️⃣ AWS Trusted Advisor (Free Tier) – Checks for security gaps and compliance best practices in AWS accounts.
https://aws.amazon.com/premiumsupport/trustedadvisor/
2️⃣ Azure Security Center (Free Tier) – Provides continuous assessment and actionable recommendations.
https://azure.microsoft.com/en-us/services/security-center/
3️⃣ Google Cloud Security Command Center (Free Tier) – Visibility across assets, vulnerabilities, and threats.
https://cloud.google.com/security-command-center
4️⃣ CloudMapper – Visualize AWS environments to identify risky configurations.
https://github.com/duo-labs/cloudmapper
5️⃣ ScoutSuite – Multi-cloud security auditing tool to detect misconfigurations.
https://github.com/nccgroup/ScoutSuite
6️⃣ Prowler – AWS security best practices assessment with CIS benchmarks.
https://github.com/toniblyx/prowler
7️⃣ Kubernetes Bench Security Tool – Checks Kubernetes clusters against CIS benchmarks.
https://github.com/aquasecurity/kube-bench
8️⃣ Falco – Runtime security monitoring for containers and Kubernetes.
https://falco.org/
Implementing these tools strengthens cloud posture, reduces attack surface, and helps CISOs maintain compliance without expensive licenses.
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📅 Book a free intro call: Schedule here
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