They have names I assume. They can hide, but we can't it seems.
Actual link to the legislation: https://www.europarl.europa.eu/RegData/docs_autres_instituti...
It’s not an overwhelming read.
Key takeaways: no one bans encryption or mandates back doors. No one requires companies to do this, but this suspends the ban on doing it (temporarily).
Additionally, you cannot be sure your line is encrypted on many services. That is a loss in my opinion.
It's good to be worried that this might happen, or that businesses might do something voluntarily as an extension or whatever. But it's not the same as "EP passes legislatino forcing businesses to install back doors" which is parroted by the PP over and over. That's hyperbole (to not say outright bullshit).
But I think it is still important that mails qualify as confidential communication, even with all its limitations. That has been clearly removed by this legislation.
And you can argue that companies are indeed forced to scan mails, it depends a bit on their business, but many might feel indeed be forced to take such a measure to not get left behind. As I said, depends on the business.
And the title is correct to the letter. The parliament did approve mass surveillance for private mail. Maybe use another word like sanction, but it fits the
Perhaps it is a bit dishonest, because it can be read wrong and that might be the case in most instances, but that is sadly how things are often framed today.
A slippery slope is just a fallacy in a way that there might be insufficient proof for a certain consequence. I rarely read it applied correctly on the internet, although it became quite popular.