At least 300 schools in Italy were evacuated on Wednesday after receiving a bomb alert message, the government said, the latest in a series of threats and cyberattacks on supermarkets, blood banks, air traffic and TV broadcasters across Europe. Italian Education Minister Giuseppe Valditara told La7 TV channel that the alerts were presumed to be hoaxes, adding that the number of schools affected was expected to rise. A large number of schools in Northern Ireland were also sent a threatening email, the Northern Ireland Education Authority said on Wednesday, but have been advised to stay open as the authority said police did not regard it as a credible threat. "Following a nationwide bomb alert, we wish to inform you that all students have been taken to a safe area and remain under the supervision of teaching staff," one school in Rome informed parents through a messaging app. The email received in Italy was signed "Mikhail Andropov, leader of the Vilayat of Misoginistan," according to a copy of the message seen by Reuters. The same purported author claimed responsibility for email bomb thre