More pertinent to the 18-to-35 crowd are employment scams. I don't mean in the stolen wages or unpaid labor of capitalism, either. In the past couple years, there has been a massive boom in listings for exploitative, nonexistent, and occasionally illegal "job opportunities". Worst of all, you may never be paid for a second of it.
Generally,"if it sounds too good to be true, it probably is" are wise guiding words for any opportunity you stumble across. Some things to look out for are:
Ambiguous requirements/description – This doubles as a scam and toxic workplace red flag. Job listings should include an overview of responsibilities, and ideal candidate descriptions. Legitimate employers who can't communicate that won't get better if you're hired.
Fees and "investments" – Job applications do not cost money, and employees are never personally responsible for the purchase of stock, investment, etc. These can both be one-off scams, or a hook into a multi-level marketing scheme.
Carrot on a stick – Compensation does not include the potential of earning later. Be especially wary of introductory pay lasting months or time frame specific raise "opportunities". There's a good chance they have a high turnover, and are running out the clock on cheap labor.
Travel without compensation – This is another dual scam/toxic workplace red flag. If travel is a requirement, you should be compensated for the time and cost. If the position is not transport, investigative, or administrative-related, travel requirements are also generally worth interrogation.
Limited staff – With some exceptions, oh my god, be suspicious of any job offer where you'll be the only employee. Even with small businesses, they should be upfront about the pressure, have a contingency plan for when you're unable to come in, and can demonstrate the ability to be professional and managerial.
I'm sure there are other warning signs, but those are the ones I can think of off the top of my head. Just stay vigilant, y'all!
