Never heard of those two being opposed.

The trade-off of security is widely known to be convenience, not privacy.

Privacy is a part of security. There's more to security than just privacy.

To give an example, telling a friend where you'll be if you go on a date is sacrificing some privacy for security.

There's overlap but they are different concepts.

Security is about protecting all assets, tangible or not. Privacy is really about protecting personal and/or identifiable information.

Security is a part of privacy.

For example, you may block cookies in your browser. That is a privacy measure, but not really a security measure.

It’s not applicable to individuals. Think of society as the whole. I want access to encryption to protect my tax files. Pedos want encryption to pass illicit pix. As a society, should we pass laws that support encryption (privacy), or laws that restrict encryption (security).

It's only weird until you realize they aren't talking about your "personal" security. They couldn't care less about you.

Both security and privacy are forms of control. This can be confusing, but there is a difference. I think of it like this:

Security is your control over who can access your data. If someone is accessing your data after you've tried to prevent them from doing so, that's a security breach. You'll need to improve something on your end to fix it.

Privacy is your control over what people and companies can do with your data once you've granted them access to it. This one can be harder to fix when something goes wrong, and it can mean anything from adjusting some settings that you didn't know existed to changing who you vote for in government elections.

All privacy is security, but not all security is privacy.

Sorry, but we can only get so much security by giving up your privacy, now we need the kind of security that can only be bought by giving up your security as well.