The massive amount of customer withdrawals that led to the collapse of Silicon Valley Bank had all the hallmarks of an old-fashioned bank run, but with a new twist befitting the primary industry the bank served: much of it unfolded online.
Customers withdrew $42 billion in a single day last week from Silicon Valley Bank, leaving the bank with $1 billion in negative cash balance, the company said in a regulatory filing. The staggering withdrawals unfolded at a speed enabled by digital banking and were likely fueled in part by viral panic spreading on social media platforms and, reportedly, in private chat groups.
Source : Experts Attribute SVB Failure to First Bank Run Driven by Twitter