Nowadays, it can be difficult to know if a job is real or a scam.

Asking for money
A genuine employer will never request any money or fee in advance to start a job.

Without online presence
You should be able to find information about a legitimate company by doing an online search. If you do not find anything, it's probably a scam.

The offer is too good to be true.
Be very careful if you are promised a high salary for a very small or simple job.

Requesting confidential
The information never gives the details of the credit card or the bank information before checking the background of a company.