If there’s one thing you should keep both anonymous and disposable, it’s any file that you share with friends or family on the web. Sending an attached file from your email account is risky. First, normal email is non-secure; hackers can easily intercept it. Once intercepted, the same hackers can easily retrieve the attached file. Sending something private? It’s best to not use email!
A better method is to use a disposable file transfer service for privacy’s sake. You can find a dozen or more file transfer services. I prefer Send Anywhere because (1.) the service is free and (2.) the recipient can only retrieve the file(s) if he or she knows the 6-digit key used when you sent it and (3.) Send Anywhere deletes the file(s) immediately from the company’s servers as soon as the recipient finishes retrieving the file(s). Use of the 6-digit key locks out most hackers. However, don’t send the key via email!
Many Send Anywhere users regularly send files up to 100 gigabytes in size through the mobile app and up to 300 gigabytes by using the desktop apps.