Looking on the internet deeply has found these results:

careful of is the most popular phrase on the web.

careful with 11,510,000 results on the web	careful of 11,610,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
They are indeed both correct, for example: 'Be careful with the hot plates' and in many children's stories 'be careful of the big bad wolf'. side of ... "Careful with That Axe, Eugene" is an instrumental composition by the British rock band Pink Floyd. The studio recording was originally released as the B “Careful with That Axe, Eugene” is a song by the British band Pink Floyd. The studio recording is featured on Relics, while a live version can be found on ... "Careful With That Axe, Eugene". Down, down. Down, down. The star is screaming. Beneath the lies. Lie, lie. Tschay, tschay, tschay. [Sound of Waters blowing ...	My brother says: Eddie, be careful of or with the manhole! Scenario 2) You don't trust Kelly and you want to advise me that I shouldn't trust her ... She was careful of their feelings. The police were careful to leave the room exactly as they found it. Police made a careful examination of the scene. Be careful what you say. careful of/about/with something Be careful of the traffic. Please be careful with my glasses (= Don't break them). I'm very careful about ... Careful of the Company You Keep and over one million other books are available for Amazon Kindle. Learn more. Enter your mobile number or email address ...

careful with

11,510,000 results on the web

careful of

11,610,000 results on the web

More popular!

They are indeed both correct, for example: 'Be careful with the hot plates' and in many children's stories 'be careful of the big bad wolf'.
side of ...
"Careful with That Axe, Eugene" is an instrumental composition by the British rock band Pink Floyd. The studio recording was originally released as the B
“Careful with That Axe, Eugene” is a song by the British band Pink Floyd. The studio recording is featured on Relics, while a live version can be found on ...
"Careful With That Axe, Eugene". Down, down. Down, down. The star is screaming. Beneath the lies. Lie, lie. Tschay, tschay, tschay. [Sound of Waters blowing ...

My brother says: Eddie, be careful of or with the manhole! Scenario 2) You don't trust Kelly and you want to advise me that I shouldn't trust her ...
She was careful of their feelings. The police were careful to leave the room exactly as they found it. Police made a careful examination of the scene.
Be careful what you say. careful of/about/with something Be careful of the traffic. Please be careful with my glasses (= Don't break them). I'm very careful about ...
Careful of the Company You Keep and over one million other books are available for Amazon Kindle. Learn more. Enter your mobile number or email address ...