SSLv3 (Secure Socket Layer version 3) and TLSv1.0 (Transport Layer Security version 1.0) are cryptographic protocols used to secure communications to and from your machine. Both of these protocols are deprecated. TLSv1.2 is the current standard, and TLSv1.3 is starting to become ubiquitous.
SSLv3 and TLSv1.0 have been easily compromised and are considered insecure. Windows 7 supported these protocols out of the box, and if you haven’t taken steps to turn off support, they’re still active.
TLSv1.2 will eventually become deprecated as processing power increases, and Win7 will never be updated to support TLSv1.3 or future cryptographic functionality. Caveat emptor.
I have all Windows support/downloads etc turned-off, as of 1/15/20.
Thank you for your advice.