PHILADELPHIA (CBS) — Apple co-founder Steve Wozniak is in Philadelphia on Tuesday, a day after criticizing Facebook over the company’s handling of private information.

Facebook Backlash Continues: Apple Co-Founder, Wozniak, Deletes Account

READ MORE: At Least 5 People Killed In Several Shootings From Saturday To Sunday In Philadelphia: Police

Wozniak is taking part in a conference for a local health care company.

Wozniak said on Monday he would prefer to pay for Facebook than have his personal information exploited for advertising.

READ MORE: SEPTA Transit Police Searching For 3 Suspects Accused Of Assaulting, Robbing Woman On Market-Frankford Line In Center City

Was Your Facebook Data Shared With Cambridge Analytica? You Can Now Find Out

His unexpected announcement is the latest development in a continuous corporate feud by tech leaders as Facebook handles the fallout of the misuse of user data by political targeting firm Cambridge Analytica.

MORE NEWS: Detectives Investigating Deadly Shooting In Trenton, Police Say

Facebook CEO Mark Zuckerberg is set to testify on Capitol Hill on Tuesday and Wednesday about the company’s ongoing data-privacy scandal and how it failed to guard against other abuses of its service.