Professional indemnity covers you for allegations of mistakes and errors..
In software that is usually allegations related to software failures/glitches, server downtime, breach of warranties/uptime agreements, or breach of contract. These risks will only be covered by a specialist technology product.
Some insurers provide negligence only policies, which will often exclude the key risks software companies face.
A specialist technology product will also include breach of confidentiality and breach of intellectual property, which can protect from claims from third parties (not just your own clients).
