Are cookies safe?
Mostly, yes. A cookie is a passive piece of text, not a program. It cannot carry a virus, install anything, or read your files. The real question is not safety but privacy: who gets to see what you do.
What a cookie cannot do
- It cannot run code or install software.
- It cannot read other files on your device.
- It cannot access cookies set by a different website.
So the "cookies are dangerous" framing is mostly misplaced. They are a storage mechanism, not malware.
The real trade-off: privacy
The legitimate concern is third-party cookies, which let ad networks recognise you across many sites and build a profile. That is tracking, not a security hole, but it is why the law requires consent and why browsers are removing them.
Staying in control
You can clear cookies any time, block third-party cookies in your browser, or decline them on a cookie banner. For a site owner, the takeaway is simpler: only set what you need, be honest about it, and let people opt out cleanly.
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