function creep

British  

noun

1. the gradual widening of the use of a technology or system beyond the purpose for which it was originally intended, esp when this leads to potential invasion of privacy

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Example Sentences

There was also a move to use security cameras originally installed to fight serious crime and terrorism in an example of “function creep” — where technology is used for a different purpose than originally intended.

From Seattle Times

In Singapore, the government admitted that a contact tracing application collected data that could also be used in criminal investigations — an example of “function creep,” where health data was repurposed beyond the original goal.

From The Verge

Plus, says Kreps, “there’s a risk of function creep and state surveillance”.

From Nature

Once you create these databases is it very easy to fall into function creep — this data should be used only in very limited circumstances but people will hold on to it because it may be useful later on for some secondary purpose.

From Salon

Charney addresses the need to limit this kind of function creep, but I don't think it will be easy to prevent; it's an enforcement mechanism just begging to be used.

From Forbes