For my drives at work, I use Eraser. It'll let you wipe entire drives or just unallocated space. A single pass of all zeroes is sufficient (listed as British HMG IS5 (Baseline) (1 pass)" in the program. Source: 12 months ago

If you're really paranoid, try something like https://eraser.heidi.ie/ to delete any files from your computer permanently in case you think your laptop or computer might be searched. Source: about 1 year ago

I usually have my drive accessible on a windows box and use https://eraser.heidi.ie/ to fill up all the unused space with pseudorandom data at 1 pass. I call that good for my usage. Source: about 1 year ago

Use Eraser https://eraser.heidi.ie it overwrites the data; you can set how many times you want it to do. Depending a how big the drive is it could take a long time. Source: about 1 year ago

The one I have used and recommend is Eraser: Https://eraser.heidi.ie/. Source: about 1 year ago

There definitely is a technical usecase for blockchain technology Just look at Https://aws.amazon.com/qldb/. Source: over 1 year ago

Https://aws.amazon.com/qldb/ Maintain an immutable, cryptographically verifiable log of data changes. Source: almost 2 years ago

AWS has a cloud implementation of that : https://aws.amazon.com/qldb/. Source: almost 2 years ago

Amazon's QLDB is a blockchain-based database with cryptographically verifiable history. You can audit and prove where every change in the database came from. (Here's the Wikipedia article about the software domain in general; QLDB is just the example from the biggest player). Source: about 2 years ago