Added PGP public key for sending encrypted email.

Thanks to xet7 !

SECURITY.md

@@ -1,11 +1,12 @@
 About money, see [CONTRIBUTING.md](CONTRIBUTING.md)
 
 Security is very important to us. If you discover any issue regarding security, please disclose
-the information responsibly by sending an email to security@wekan.fi and not by
-creating a GitHub issue. We will respond swiftly to fix verifiable security issues.
+the information responsibly by sending an email from Protonmail to security@wekan.fi
+that is Protomail email address, or by using this PGP key
+[security-at-wekan.fi.asc](security-at-wekan.fi.asc) to security@wekan.fi
+and not by creating a GitHub issue. We will respond swiftly to fix verifiable security issues.
 
-We thank you with a place at our hall of fame page, that is
-at https://wekan.github.io/hall-of-fame
+We thank you with a place at our hall of fame page, that is at https://wekan.fi/hall-of-fame
 
 ## How should reports be formatted?
 

security-at-wekan.fi.asc

@@ -0,0 +1,17 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+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+=7QOI
+-----END PGP PUBLIC KEY BLOCK-----