Here are some of the all-time most significant cases of companies betraying their investors.
Some of these cases are truly amazing. Try to look at them from a shareholder's perspective. Unfortunately, the shareholders involved had no way of knowing what was really happening as they were being tricked into investing.

ZZZZ Best (1986

Centennial Technologies (1996)

Bre-X Minerals (1997)

Enron (2001)

WorldCom (2002)

Tyco International (2002)
Follow the simple rules: prevention, verification and education.
LOOK AT THE SP AND USE YOUR LOGIC ...THE RED FLAGS ARE EVERYWHERE