Highline Public Schools (HPS) said classes will be canceled again on Tuesday as it works to investigate "unauthorized activity" on its technology systems. The district said it detected the issues over the weekend and took many of its programs offline to address the issue. It did not confirm that it was a "cyberattack." "Student safety is our number one priority and there are a lot of systems we rely on in schools we've cut off access to as we investigate," said Tove Tupper, HPS chief communications officer. "For transportation, we use a system to know where buses are going, we need access to that tool. Attendance tracking, there's a system we need access to. It's not that those systems have been compromised at this point, it's that we've shut off access to those systems." READ MORE: https://www.king5.com/article/news/education/cyber-attacks-rise-k-12-districts/281-7c8331f7-2b42-44db-871b-eb06a5c60a45