The EU e-Privacy Directive, otherwise known as the EU Cookie Law, originally came into place on the 26th of May 2012 and means you, as the site owner/administrator, have to get your visitors' informed consent before placing a cookie (probably related to social media elements or login/tracking systems) on their machine.
If you are a WordPress admin, there is a notification plugin for you to use which looks like this:
![enter image description here](../../I/static/images/db29f41c209dcf2c6270a565303abe5f13509320d211f2baec8baa0d3efd75a1.png)
There is also a great overview.
According to the above link, it is not just standard cookies.
The law also affects anything that acts like a cookie, for example:
Flash Cookies and HTML5 Local Storage.
There are also 'suggested categories' from the same link above (overview):
- Essential (logins)
- Non-Essential but harmless (functionality, not essential)
- Fairly Intrusive (web tracking)
- Very Intrusive (PII - personally identifiable information)
1Legal questions are off-topic here – kinokijuf – 2014-10-12T20:26:39.917
In 2012 already? Interesting. I started noticing this cookie warnings back then at some point. (I saw this Question around three years ago and look it up to check whether there have been any discussions about GDPR). – neverMind9 – 2018-10-25T23:10:35.603
30Remember guys! Use Ghostery and AdBlock Plus addons. Both in Chrome and Firefox. Always. – Apache – 2012-07-28T17:17:15.157
11@Shiki I use add block most of the time, but I don't think everyone should all the time. Thats how websites exist, from advertising revenue. Some websites even have different content if they detect plug in. – NimChimpsky – 2012-07-29T08:22:47.153
@NimChimpsky 1) If you install AdBlock at a friend or at a non-tech-savvy person, always use main filters, and only the most necessary ones. 2) If the person (or you) likes a forum or a site, unblock that. It's possible. Even easy for newbies. 3) But Ghostery should remain ON, for all the time. The only thing it kills (what you may want to use) is the ultra-cheap/worse online tech support chat. But those kind of support sites never help. Most of them are just bots, or unpaid/underpaid people who just redirects you to sites and whatnot. – Apache – 2012-07-29T09:20:35.283