Final answer:
Software publishers provide digital signatures to verify the security and integrity of their programs.
Step-by-step explanation:
Software publishers often provide digital signatures to verify that their programs are secure and have not been tampered with.
A digital signature is a cryptographic technique that uses a combination of public and private keys to ensure the integrity and authenticity of digital data.
By signing their software with a digital signature, software publishers can guarantee that the program has not been modified and that it comes from a trusted source.