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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Inside the Shadows – How Dark Web Monitoring Protects Your Business Before It’s Too Late
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AI-Powered Cyber Threats Are Here – And They’re Moving Faster Than You Can React
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📊 CISOs: Free Cybersecurity Metrics Dashboards to Track Right Now 📊
As a CISO, you’re judged by how well you measure and communicate risk. But building dashboards from scratch or paying for pricey platforms isn’t always feasible.
Good news: there are powerful free cybersecurity dashboards you can start using or adapting today to track what matters most – from phishing response times to endpoint health and user risk.
Here’s a curated list of must-know dashboards and templates:
1️⃣ Microsoft Security Dashboard (via M365 Defender) – Visibility into threats, secure score, and incidents.
https://security.microsoft.com/securityoperations
2️⃣ Google Chronicle Security Dashboard (Free Tier) – SIEM-like visibility with integrated threat context.
https://cloud.google.com/chronicle
3️⃣ Splunk Security Essentials – Prebuilt dashboards for SOC maturity, MITRE mapping, and detection coverage.
https://splunkbase.splunk.com/app/3435/
4️⃣ Grafana + OSQuery Dashboards – Visualize endpoint queries across your fleet.
https://grafana.com/grafana/dashboards/12633-osquery-monitoring/
5️⃣ MITRE D3FEND Matrix Dashboards – Visual guide to map defense techniques against known threats.
https://d3fend.mitre.org/
6️⃣ Elastic Security Dashboards (via ELK Stack) – Open-source option for visualizing threat and event data.
https://www.elastic.co/security
7️⃣ Wazuh Dashboards (via Kibana) – Security analytics dashboard tailored to endpoint data and compliance events.
https://documentation.wazuh.com/current/user-manual/kibana-app/index.html
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