docs: update SECURITY.md with vulnerability disclosure policy

Signed-off-by: erik1o6 <[email protected]>

Author: erik1o6

SECURITY.md

@@ -1,8 +1,25 @@
-# Security policy
+# Euler Security Policy
 
-## Reporting a vulnerability
+## Vulnerability Disclosure and Bug Bounty
 
-If you discover a security vulnerability, please report it responsibly. Do not publicly disclose the issue until your report has been addressed. Resources for reporting:
+Security is a top priority at Euler, and we engage in regular security reviews and have an active bug bounty program to ensure the integrity of our systems.  
 
-- **Email:** [email protected]
-- **Further reading:** https://docs.euler.finance/security/overview
+To report a vulnerability, **please submit it through our bug bounty program**:  
+[Euler Bug Bounty](https://euler.finance/bug-bounty)  
+
+**Reports sent via email will not be accepted.** Email should only be used for general security inquiries.
+
+## Security Team Contact Details
+
+For security-related questions or inquiries (not vulnerability reports), you can contact us via:  
+- **Email**: [[email protected]](mailto:[email protected])  
+- **PGP Encryption**: [Euler Public Key](https://euler.finance/.well-known/public-key.asc)  
+
+## Previous Security Reviews
+
+Euler undergoes regular security audits. You can find details of previous security reviews here:  
+[Euler Security Reviews](https://docs.euler.finance/security/security-reviews)  
+
+## Preferred Languages
+
+We accept security-related inquiries in **English (en)**