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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🎯 Free Phishing Domain Trackers Saving CISOs Daily Headaches 🎯
Phishing attacks remain one of the biggest threats to organizations, but staying ahead is possible with the right monitoring. These free phishing domain trackers help CISOs identify suspicious domains before they target employees.
Here are the top free phishing domain trackers:
1️⃣ PhishTank – Community-driven database of active phishing sites.
🔗 https://www.phishtank.com/
2️⃣ APWG eCrime Exchange (eCX) Free Feeds – Aggregates phishing domain data from global sources.
🔗 https://www.antiphishing.org/
3️⃣ OpenPhish Community Edition – Real-time feed of confirmed phishing URLs.
🔗 https://openphish.com/
4️⃣ FraudWatch International Free Tools – Alerts on phishing and domain impersonation.
🔗 https://fraudwatchinternational.com/
5️⃣ URLhaus – Tracks malware and phishing domains used in attacks.
🔗 https://urlhaus.abuse.ch/
6️⃣ Google Safe Browsing – Check URLs against Google’s database of unsafe sites.
🔗 https://safebrowsing.google.com/
7️⃣ AUMINT.io Threat Feed Samples – Curated phishing domain intelligence with human risk insights.
🔗 https://aumint.io/resources
⚡ Using these free trackers, CISOs can proactively block phishing campaigns, protect employees, and reduce incident response workload.
At AUMINT.io, we go further by simulating real-world phishing attacks to see which employees are likely to click and where controls need reinforcement.
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Cybercriminals Are Recruiting Social Engineering Experts – Are You Ready?
🚨 Cybercriminals Are Hiring Social Engineering Experts
😱 Criminal networks are now recruiting professionals skilled in psychological manipulation to bypass security systems.
📧 These social engineers craft highly convincing phishing and pretexting campaigns, exploiting employee trust with precision.
⚡ Traditional cybersecurity defenses are insufficient – the human element is the most targeted vulnerability.
🔑 Realistic simulations, behavioral monitoring, and continuous training are essential to counter these threats.
💡 AUMINT.io’s Trident platform equips employees to detect subtle manipulations and respond effectively, building a resilient human firewall.
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💰 Free Breach Cost Calculators to Shock Your Board 💰
Understanding the financial impact of a breach is critical for CISOs when communicating risk to executives. Luckily, there are free calculators that estimate breach costs, helping you make your case effectively.
Here are the top free breach cost calculators:
1️⃣ IBM Cost of a Data Breach Calculator – Estimate potential losses based on industry, size, and breach type.
🔗 https://www.ibm.com/security/data-breach
2️⃣ RiskLens Free Calculator – Quantifies cyber risk in financial terms for board presentations.
🔗 https://www.risklens.com/
3️⃣ Cyence Free Risk Calculator – Models the financial impact of cyber incidents on your organization.
🔗 https://www.cynece.com/
4️⃣ BitSight Breach Cost Insights – Estimates breach-related financial exposure using security rating data.
🔗 https://www.bitsight.com/
5️⃣ Ponemon Institute Cost of Breach Tool – Provides benchmarks for breach cost analysis by sector.
🔗 https://www.ponemon.org/
6️⃣ SANS Breach Cost Templates – Free Excel templates for estimating internal and external breach costs.
🔗 https://www.sans.org/white-papers/
7️⃣ AUMINT Breach Simulation Tool – Combines human risk and technical exposure to estimate potential losses.
🔗 https://aumint.io/resources
⚡ Takeaway: These tools help CISOs translate technical vulnerabilities into financial impact, making it easier to secure budget and executive buy-in.
At AUMINT.io, we add another layer – simulating employee-targeted attacks and insider scenarios to quantify human-driven breach risk, giving your board a complete picture.
🔗 Want to show your executives how human factors affect breach costs? Book a free demo
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