Yes. Adding a small amount of redundant data to your cache as a safety check check is important. Imagine instead of a user profile at Royal Mail this was patie

Yes. Adding a small amount of redundant data to your cache as a safety check check is important. Imagine instead of a user profile at Royal Mail this was patient data in a hospital. Getting this information wrong could endanger someone's life. And mistakes with private data that isn't safety critical can still cost a hefty fine from a government data protection office, or bad publicity and damage to your reputation.