Why must the output of a collision-resistant hash function depend on every input bit?

Why should you use links in your presentation rather than keyboard shortcuts?

You should be cautious about what you publish on social media and where you post it, among other advice for being secure online. Make sure you are aware of the site's security procedures. Search engines won't be able to access your profile if you hide it from the general public. Never respond to or click on links in scam emails.

How can you distinguish between fake and authentic information on the internet?