Bank of America warns customers of data breach after document handling mishap / Employee screening data breach exposes 3.3 million records / Investment research data breach exposes 12 million customers / US drug testing firm DISA says data breach impacts 3.3 million people / PowerSchool data breach affected 16,000 students in the UK / PowerSchool data breach hit nearly 1.5M past, present Toronto students / Wolf Haldenstein law firm says 3.5 million impacted by data breach / PowerSchool data breach exposes millions of student and teacher records / Meezan Bank dismisses 'data breach' after reports of unauthorised transactions / Data breach exposes over 56 million clothing store customers