About Petra
A new era in identity defense.
Petra stops more Microsoft 365 attacks with less work. Our platform detects, contains, investigates, and reports every BEC and token-theft attack — at adversary speed, with the transparency and control MSPs need.
Trusted by leading MSPs
We built Petra to stop the next generation of attacks — empowering MSPs with an autonomous defense that detects, triages, and adapts at adversary speed, with the transparency and control that makes work easier instead of harder.
The Petra Security team
- 1.7M+
- Identities protected
- 10,000+
- Businesses protected
- <1 min
- Median time to detect
- 80%
- Reduction in ticket volume
What we believe
The principles behind the product.
Behavior over location
Attackers no longer trip impossible-travel rules. Petra watches intent across every M365 surface — logins, Exchange, SharePoint — so we catch the attacks location-based tools miss.
Built for MSPs, not retrofitted
Multi-tenant from day one. Deploy to every client in two clicks through Partner Center, and give your team one place to detect, respond, and report.
An alert is the end of the work
Detection without remediation just creates a ticket. Petra disables the account, revokes sessions, retracts phishing, and reverses everything the attacker left behind.
Show the work
Every incident produces a complete attacker timeline and a client-ready report — so your team can prove value, not just promise it.
Who we are
Built by defenders, backed by operators.
We built Petra to put defenders in control, because no one knows your clients' environments better than you do. The team brings together the people who understand both sides of the attack:
- Detection researchers and security engineers who've sat on the offensive side
- Former MSP and SOC operators who've lived the 2 a.m. incident
- Product and design from teams that ship fast and sweat the details
Backed by world-class investors
Petra is backed by investors and advisors who have built and scaled some of the most respected names in cybersecurity. Together they bring the expertise and conviction to help us stop the threats others miss.
- 1.7M+
- Identities protected
- 10,000+
- Businesses protected
- 24/7
- US-based SOC coverage
- SOC 2
- Type II & HIPAA compliant
How MSPs win with Petra.
View all case studies →M-Cubed
“I think a lot of people are in the same position that we were——they just don't know what's really happening until all the forensic analysis is done.”
Compu-SOLVE Technologies
“Not only did it catch those 4 attacks our prior ITDR whiffed on, it's also really fast and intuitive for getting logs and reporting on incidents.”
Impact Business Technology
“What I like about Petra is you do one thing, and you do it extraordinarily well.”