salami-slicing
noun [ U ]
ukusthe crime of stealing a large amount of money, by taking it over a period of time in small amounts that are less likely to be noticed:
It was revealed that he had used salami-slicing attacks to steal from the company.
a series of actions to remove or reduce something by small amounts over a period of time, so that people are less likely to notice any changes:
The politicians are already permitting the salami-slicing of the free healthcare principle and no one is protesting.