All hotels reserve the right to inspect your room whenever they need to. The privacy sign just means you don’t want room service, it’s not some magical lock.
They’d still knock, not just burst into your room to catch you in flagrante.
That said seeing the black hat conference in this way is daft.
Because it’s actually really hard to achieve technically. When ads are served outside the stream you can easily serve different ads to different viewers based on their profiles. When the ads are baked into the stream you can either
A) Create a whole bunch of different copies of the video asset with different ads baked in and then rotate these on a regular basis. Which would be expensive to update and store and limit the range of adverts that could be served to a particular user.
B) Dynamically create a stream on the users request, which while possible means standard CDN caching isn’t going to work so there’s a distribution challenge.
Or some other alternative they’ve come up with. I’d be really interest to know what their approach is here.
The thing with serverless is you’re paying for iowait. In a regular server, like an EC2 or Fargate instance, when one thread is waiting for a reply from a disk or network operation the server can do something else. With serverless you only have one thread so you’re paying for this time even though it’s not actually using any CPU.
While you’re paying for that time you can bet that CPU thread is busy servicing some other customer and also charging them.
I like serverless for it’s general reliability, it’s one less thing to worry about, and it is cheap when you start out thanks to generous free tiers, at scale it’s a more complex answer as whether it is good value or not.
I imagine SMS authorisation texts are Telegrams biggest single expense, they are for Signal https://signal.org/blog/signal-is-expensive/
Telcos know that authentication is about the only remaining use case for SMS and are not going to turn down the revenue stream.
That said this idea from Telegram sounds absurd. Not least I expect most contracts prevent reselling free SMS’s like this. The security implications have got to be significant too.
Pretty sure the scary warnings in big bold text are more recent than this report.