Full disk encryption is a cryptographic method that applies encryption to the entire hard drive including data, files, the operating system and software programs. This form of encryption is comparable to the protection of your home. 45 percent of healthcare breaches occurred due to stolen laptops, according to Verizons 2015 Data Breach Investigation. One in four breaches that occurred in the U.S. financial sector over recent years was the result of lost or stolen devices. A laptop containing personal health information (PII) or proprietary information was stolen in 2016.”]
Source: https://www.csoonline.com/article/3247707/full-disk-encryption-do-we-need-it.html