We’ve all heard of phishing — the use of fraudulent electronic exchanges by hackers seeking sensitive information like usernames and passwords. Now cybercriminals have expanded their repertoire to include vishing — basically voice phishing by phone. And the mere act of posting photos online could turn users into victims.“I can just bypass every security protocol you’ve set up. I don’t even need a technical hacker,” said Rachel Faber Tobac (pictured), associate user experience researcher at Course Hero Inc.Tobac would know — she’s a white-hat hacker and visher helping companies understand their vulnerabilities and strengthen their defenses