The words that require colons to be removed are without risks and the customers. Here there is no need to put a colon instead comma can be inserted.
A colon refers to a punctuation mark used in the sentence when there any list is given about various names as well as it shows dialogue conversation indicating a symbol after the name of the speaker.
The sentence which requires a colon to be added is "Top data protection advisor Vedant Lilliman warns " which indicates an explanation that signifies the use of a Colon in the sentence to make it clear.
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