Apparently there was a fire in a Datacenter - theres a thread on /r/sysadmin by an insider. https://np.reddit.com/r/sysadmin/comments/ao4g2y/wells_fargo...
Incredible. They had all their mission-critical infrastructure in a single data center. How many billions of dollars do they make per year? And they can't afford even a tiny bit of redundancy? If I were a customer, I'd use this as a sign that this company is not technically competent enough to manage my money.
After all their logo is that of a stage coach aka the wild Wild West(robbers, thieves, etc). They do not hide who they really are.