SEATTLE - Seattle Public Schools officials say someone stole teacher passwords in a district computer system, and they're looking into whether the passwords were used to change grades.
The district's information technology staff sent an email to teachers Thursday warning them of the breach. The email said the theft of network logins had occurred at at least three high schools - Ballard, Ingraham and Sealth - over the past few weeks.
It said hackers plugged devices into computer USB ports that capture keystrokes - everything from passwords to the texts of emails. The IT staff email said grades have been changed, but district spokeswoman Teresa Wippel said officials have not yet confirmed that.
Teachers are being asked to to check their computers for such devices and to see if studen grades have changed.