SMS does not send

We all know that there are things that should be alarming, but there are things that you should never do.

Let's say you meet strange people on the street and say that you won the prize.
Or the SMS comes, where it is indicated that you won the prize.
It is clear that this is scam, and nobody gives out prizes without a sensation in the media.

Or say a cool, but unknown company invites you to work (found how?) With a magnificent salary, but you must first make a contribution for registration, uniform, well, something else there.
No official normal firm requires any contributions.

Send SMS

This has already been thousands of times. Yandex, Sberbank, etc. Many many times reported that they never require a client to provide a password or send them SMS.
NEVER.

To confirm your identity, YOU CAN SEND SMS with the code that you will need to enter to the site on the Internet. But not vice versa.

If you still send SMS for any reason, you will simply lose money, possibly a lot of money.
Nothing ever happens again. If you have popped a porno-banner and require to send an SMS to close it.
Do not believe that no one cares about you, it's up to your money, you just started milking and will continue as long as you allow.

So, the rule:

Send SMS

we never send SMS