does the psk.txt file located in the raccoon folder mean that there is a secret account on my computer
This is what the file shows
# IPv4/v6 addresses
# 10.160.94.3 asecretkeygoeshere
# 172.16.1.133 asecretkeygoeshere
# 3ffe:501:410:ffff:200:86ff:fe05:80fa asecretkeygoeshere
# 3ffe:501:410:ffff:210:4bff:fea2:8baa asecretkeygoeshere
# USER_FQDN
# macuser@localhost somethingsecret
# FQDN
# kame hoge
MacBook Pro, OS X Mavericks (10.9.5)