Two universities in Tennessee and Louisiana are struggling with cyberattacks that have crippled campus services and left students scrambling to find alternative tools. Tennessee State University — a public historically black land-grant university in Nashville — notified its more than 8,000 students on Wednesday that its IT systems were brought down by a ransomware attack. In a letter, the school said it shut down all internet access on campus and planned to keep systems down until at least Friday. Students will still have access to their email accounts, Zoom and campus computer labs. But the campus VPN, wireless network and external websites like Google will not be accessible.