ITT: people who didn't read the article and believed the false headline that Business Insider made up.
The 3rd sentence of the article, in bold, explains that the savings were from consolidating on-prem hardware, not from eschewing external cloud.
The article cites BofA itself at sayignthat savigns vs external cloud is tenuous at best:
> Right now, the bank estimates its private cloud is 25 to 30% cheaper than public providers, though it also recognizes that probably won't last forever. Still, the company believes the architecture it has built will give it leverage in negotiating contracts with these companies
The 3rd sentence of the article, in bold, explains that the savings were from consolidating on-prem hardware, not from eschewing external cloud.
The article cites BofA itself at sayignthat savigns vs external cloud is tenuous at best:
> Right now, the bank estimates its private cloud is 25 to 30% cheaper than public providers, though it also recognizes that probably won't last forever. Still, the company believes the architecture it has built will give it leverage in negotiating contracts with these companies