be wary of

"No country will accept illegal entry. We have been consistently issuing advisories to people to be wary of job rackets, but they are still going."

To fear North Korea now means to be wary of China too.

But she must be wary of an opponent who saved a match point before ousting world number two Iga Swiatek to reach the second major final of her career.

So be wary of recent diet trends suggesting we need to eat loads of protein.

Washington advised Americans to be wary of what he called “the baneful effects of the spirit of party…” This spirit, he said, “exists in all governments…but, in those of the popular form, it is seen in its greatest rankness and is truly their worst enemy.”