In case your PC is ever lost or stolen when traveling, encrypt your hard drive

Losing your computer while traveling can be as bad as losing your wallet or purse, since it probably contains a lot of extractable personal information, including financial particulars. Disk encryption reduces this risk by making all data on your hard drive inaccessible to anyone without a specific key (password). You can try FileVault2 son macOS or BitLocker on Windows, but be sure to remember your key.