Can you share the confidential information about your customer with your colleagues?

We should not share any confidential information about customer to your colleague because it is against  company policy and it will effect your career . 

confidential information should not be shared with anyone in or outside the organization and this is one of the most important things in SLA in every organization 

No can't share the confidential information about my customer to with my colleagues

but not at all

All confidential Information shall be handled strictly Confidentially, So my answer is "No"

First, it would depend on the contract terms about your client's privacy. Second, it depends on how the confidential information was shared received from the client. Is there any indication that says the information is confidential? If both details above give you the legal right to share the sensitive information with your colleagues, the effects (pros/cons) of sharing this information should be made clear from your company's perspective.

This depends on the client would be affected if that's happened or not!