--- a/contrib/i2pd.service
+++ b/contrib/i2pd.service
@@ -33,5 +33,31 @@ LimitNOFILE=4096
 # To enable write of coredump uncomment this
 #LimitCORE=infinity
 
+# Hardening options
+PrivateTmp=true
+ProtectSystem=strict
+ProtectHome=true
+PrivateDevices=true
+ProtectKernelTunables=true
+ProtectControlGroups=true
+NoNewPrivileges=true
+MemoryDenyWriteExecute=true
+LockPersonality=true
+SystemCallFilter=@system-service
+RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 AF_NETLINK
+ProtectHostname=true
+ProtectClock=true
+ProtectKernelLogs=true
+ProtectKernelModules=true
+ProtectProc=invisible
+ProcSubset=pid
+PrivateMounts=true
+PrivateUsers=true
+ReadWritePaths=/var/lib/i2pd /var/log/i2pd
+RemoveIPC=true
+RestrictRealtime=true
+RestrictSUIDSGID=true
+SystemCallArchitectures=native
+
 [Install]
 WantedBy=multi-user.target