In the latest cybersecurity news, Mailchimp — a company operating in the US — has fallen victim to a ransomware attack conducted by the group everest. This data breach, discovered on 2025-07-31 17:48:24.855504, underscores the increasing need for proactive cybersecurity defenses as we continue through 2025.
In response to increasing cyber threats, it’s critical to protect your organization with proactive security measures. HookPhish provides enterprise-grade solutions designed to reduce your risk of future attacks:
- Phishing Simulation – Test and improve employee readiness with realistic, controlled phishing campaigns.
- Cybersecurity Awareness Training – Educate your team to recognize and respond to common attack tactics.
- Data Breach Monitoring – Get real-time alerts if your organization’s data appears in public or dark web breaches.
- Phishing Detection and Response – Detect, investigate, and neutralize phishing threats before they cause damage.
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Incident Report
| Attribute | Information |
|---|---|
| Target Organization | Mailchimp |
| Threat Group | everest |
| Summary | [AI generated] Mailchimp is a leading marketing automation platform and an email marketing service. The platform allows businesses to design, schedule, and manage email campaigns, from large to small scale. With additional features like audience segmentation, dynamic content, and analytics, it caters to businesses looking to turn their audience data into actionable insights. It also grants users the ability to build websites and landing pages. |
| Date of Breach | 2025-07-26 00:00:00.000000 |
| Discovery Date | 2025-07-31 17:48:24.855504 |
| Region | US |
| Target Domain | None |
| Business Sector | Technology |
Don’t wait for a breach to take action — stay informed and take control of your cybersecurity posture today.
You can also check if your organization’s data has been exposed using our free Data Breach Checker.
Disclaimer: HookPhish does not engage in the exfiltration, downloading, taking, hosting, viewing, reposting, or disclosure of any stolen information. All breach data reported here is sourced from publicly available threat intelligence feeds for awareness purposes only.


