Visa Systems Issues
Does anyone else think that, all conspiracy theory aside, the information published is only partly true?If it's a purely hw issue, say a piece of highly specialized hardware (hw crypto, piece of old mainframe, etc), it can take a very long time to source it (although a SPOF is surprising in such a critical infrastructure), but it does not take 100 people to work on it, 24/7. It requires a dozen guys making angry phone calls every 2 hours to some suppliers...If it really takes 100 people 24/7, mostly likely explanation to me is that it's software related and they have to rewrite a critical sw in record time.
Causes:-bugfix (which may be entirely unrelated to secrity)-emergency migration from one hw vendor to another, for sourcing reason which entails rewrite of a part of the system.