Safety regulations

Never leave an advance payment (if you are not sure of the reliability of the organization (team), user)
Do not trust cheap offers
Do not provide personal information (passport data, plastic card numbers, passwords, etc.
Meet only in a safe place.
When hiring and concluding contracts with specialized organizations, check the availability of the necessary SRO approvals, licenses, etc.
When hiring specialists, check the availability of documents on relevant education, advanced training, etc.