personal finance
my bank, last week: hey, we're taking down our online banking options for an IT upgrade this weekend
now, my bank was split off from another bank because it got too large, but all the customer data was still with the original bank and the new bank just rented access to the old systems
the "IT upgrade" was actually "we're going to transfer every single bit of customer data from old bank to new bank all at once rather than in small batches"
naturally, this has been a disaster