Gmail Account - All Email Going to Trash - Account Hacked

A friend of mine called this morning and said his Google Gmail Account was hacked. After he reset his password, all of his incoming email to his Gmail Inbox was still ending up in his Gmail Trash Folder. When I went to his Account Filters, I found the following filter below.

1. If the email doesn't have the words "oko", then delete the email message or send it to Trash.

2. When my buddy navigated to https://security.google.com/settings/security/activity to see recent accesses to his account, there were two unauthorized accesses to his Gmail Account, one from Talahassee, Florida and the other from Atlanta, Georgia. I really hope that Google will investigate these hacks to their system and prosecute those that are engaging in this type of activity.