What are the pitfalls of taking pictures of people without warning them (the people)?

Question

Video

Here's a little project.
An excerpt from it:
*) it is planned to shoot completely random people on the street / in buildings / cafes / restaurants etc. on a permanent basis.
*) the camera will be small in size (google-viewers or the like are possible), a smartphone is possible, a hidden installation is possible (under a jacket through a hole), perhaps simply through a tripod on the head with a helmet, or a stationary surveillance camera in general (mostly planned - almost everything listed above)
*) all this will be made available to the public on the Internet: personal website/company website, YouTube/twitch etc.
Interested in the following:
What laws does this fall under?
Is it a crime?
What are the penalties?
What other pitfalls can there be, if any - answers to unasked questions.
In this issue, there is no discussion of a closed area in which there are their own internal orders (such as factories, where photography is strictly prohibited). Although, if there are answers here, I will be glad to listen. But here, in my opinion, and so it is clear.
All this will take place on the territory of the Russian Federation.

Answer 1

Start with
"How do I take pictures of people on the street without getting beat up?"
zyalt.livejournal.com/975569.html
Do not be afraid of the laws.
Start here www.svobodafoto.ru/rights

Answer 2

www.zakonrf.info/uk/137
01.mvd.ru/document/201354
I think you have something to think about, by the way, you can still + moral damage, recently the ceiling has been canceled, you can easily fly into the floor of a lemon :)

Answer 3

There are two secrets at factories - state and commercial. What matters is how you got there. If you work there, then most likely you signed non-disclosure documents. I signed both those and others - I know firsthand. Accordingly, if they prove that you filmed it, there may be problems. If you were taken there, then the responsibility is on the one who took you there - he may have problems.
Well, you cannot get there by chance, so you are right - everything is quite simple.
However, in reality, everything is simpler, I was in closed factories and local hard workers carry smartphones there and take pictures of whatever they want. True, they still don’t spread state secrets on the network - who has brains. As a businessman, I had to leave the player and phone at the checkpoint, I could only take my phone with me without a card and a camera.
As for shooting people - in addition to being able to get punched in the face, as far as I understand, you are obliged to remove frames with them if they require it.

Answer 4

None. If they ask why you are filming, answer. If you are asked to delete a photo, delete it. How do you think journalists who were asked to shoot material about life in the city (crowds, bus stops, metro, etc.) work?