So, apparently Thames Water is still using IT systems from the 1980s, which doesn't seem very ideal or secure for a critical infrastructure operator in 2024.
“The software we use is older than me, and some of the hardware is older than my dad,” says Siddharth*. He is one of a team fighting a daily battle to sustain ancient IT infrastructure at Thames Water."
Then later...
"The use of Lotus Notes is a signal of how starved of investment technology at the company has been since it was privatised in the late 1980s. Other examples of obsolete or near obsolete technology include wide reliance on 2G technologies, arrays of meters that remain analogue and require manual checks, and hardware that is often more than 30 years old." #infosec