You shouldn't violate professional ethics at your job.
Keith, who works for the IRS, wants to get revenge on Blaine, but he doesn't know where Blaine lives.
Keith wants to find Blaine's home address.
Keith uses google and other search engines to find Blaine's social media which shows where he lives.
Keith uses his IRS computer to search for Blaine and locates his address inside his tax file.
Keith manages to find Blaine without anyone suspecting him and enacts his revenge.
Keith is investigated by IRS internal security and is fired for violating taxpayer confidentiality.