As someone pointed out earlier, if the common factor for fail/not fail behavior is the OS version, then you are likely dealing with openssl package versions (and TLS version included in that). Many websites will not accept older versions of TLS due to extremely bad vulnerabilities, I would assume the banking sector would be very sensitive to actors sniffing customers banking data. We had to deal with this at a previous employer across the company, both patching openssl versions, removing old buggy versions, and web admins removing support for TLS vulnerabilities. https://media.defense.gov/2021/Jan/05/2002560140/-1/-1/0/ELIMINATING_OBSOLETE_TLS_UOO197443-20.PDF
On Thu, Jun 6, 2024 at 9:35 PM MC_Sequoia <mcsequ...@protonmail.com> wrote: > "I can understand a bank's web server accepting on Chrome and M$'s browser > from all OS versions, but not before had I had one reject all three > browserson the older OS version while accepting them on the newer version. > > Why might that be?" > > We could all guess until the cows come home, but your best option IMHO if > you actually want to solve this problem is contact the financial > institution directly. > > You prolly won't be able to get an IT person on the phone, but you might, > but you can probably get an email to the IT support folks. Just include all > the pertinent info such as browser name and version, maybe screenshots of > the error mssg. or blank screen, etc. > > I suspect it doesn't make much difference these days which OS, but I'd > just say Linux, if that's what you're using. > > HTH > > >
