**To set data protection policy** **Example 1: To deny publishers from publishing messages with CreditCardNumber** The following ``put-data-protection-policy`` example denies publishers from publishing messages with CreditCardNumber. :: aws sns put-data-protection-policy \ --resource-arn arn:aws:sns:us-east-1:123456789012:mytopic \ --data-protection-policy "{\"Name\":\"data_protection_policy\",\"Description\":\"Example data protection policy\",\"Version\":\"2021-06-01\",\"Statement\":[{\"DataDirection\":\"Inbound\",\"Principal\":[\"*\"],\"DataIdentifier\":[\"arn:aws:dataprotection::aws:data-identifier/CreditCardNumber\"],\"Operation\":{\"Deny\":{}}}]}" This command produces no output. **Example 2: To load parameters from a file** The following ``put-data-protection-policy`` loads parameters from a file. :: aws sns put-data-protection-policy \ --resource-arn arn:aws:sns:us-west-2:123456789012:MyTopic \ --data-protection-policy file://policy.json This command produces no output.