Using unsecure email providers may be easier, as these usually come installed on your devices and are widespread among your friends and colleagues, but they involve many risks. Among the most significant dangers of using email services with poor encryption are: Exposure to viruses and malware that can harm your devices, steal your data, and even breach your bank and other accounts. Direct information breaches that leave you vulnerable to all sorts of cybercrime. Exposure to annoying trackers, ads, and other sorts of spam.