Cybercriminals are taking advantage of social uncertainty and exploiting the fact that we rely more on mobile devices to stay productive. Vishing, or voice phishing, is a form of phishing where attackers trick you into giving up information over the phone; oftentimes posing as helpdesk or IT personnel. The FBI and CISA indicated that cybercriminals have turned to vishing to exploit the lack of mobile-device protection and attack remote workers. Chromebooks have become an essential, cost-effective tool for education systems that offer remote learning.
Source: https://threatpost.com/mobile-remote-work-security/161842/