Brokerages should emphasize the importance of internal checks and controls over & over again
A typing error by a clerk at the Tel Aviv Stock Exchange caused one of Israel's largest investment firms to lose nearly 100 percent of its market value on Sunday
2-3 days back NASDAQ closed trading for 3 hours
a Chinese brokerage firm error shot the whole market up by 5%
The weakest link can sometimes ...punch you in the face & HARD too