* in China TLS 1.3 is blocked by the state firewall
* based on past reading of discussions here, in some states using encryption may be illegal, not sure if this is really the case, this may eventually come to the West as well, see Australia and U.S. officials attacks on encryption
* old computers/OS/browser that the user can't update
* based on past reading of discussions here, in some states using encryption may be illegal, not sure if this is really the case, this may eventually come to the West as well, see Australia and U.S. officials attacks on encryption
* old computers/OS/browser that the user can't update