hedging one's bets

Hedging one’s bets by covering the spectrum in pricing or brand options isn’t as necessary if one already knows the customer.

It is a very sophisticated form of hedging one’s bets based on prior experience, widely used in a variety of applications—such as predicting that your credit card is being misused by somebody who has very different purchasing patterns.

This is called hedging one's bets.

Shifting political fortunes ensured a policy of "hedging one's bets".