When a drive is retired, sold on, or has given up everything it can, the data on it still has to disappear — for good, and provably. We destroy the data on hard drives and SSDs with the same forensic-grade hardware and software we use to recover it, run the other way: every sector overwritten, the result verified, and a certificate issued. The drive comes back blank and reusable; the data does not come back at all.
Every drive is overwritten, then read back and checked — we confirm zero recoverable data before any certificate is issued.
A real wipe is not a quick format or a dragged-to-bin delete — both of those leave the data sitting on the platters, waiting for a lab like ours to read it back. Forensic erasure overwrites every addressable sector on the drive, then runs a verification pass to confirm nothing readable survived. It is the same class of hardware and software we use for recovery, pointed the opposite way, and it follows the recognised benchmark for media sanitisation (NIST 800-88). When it is done the drive reports clean, holds nothing, and cannot be brought back — by us or by anyone with the same kit.
On a spinning hard drive, a verified overwrite genuinely erases — the magnetic data is replaced and gone. SSDs and flash are the trap: their controllers scatter data across spare cells and remap blocks invisibly, so a naive overwrite can leave whole regions untouched behind the scenes — looking wiped without being wiped. So solid-state drives get a controller-level secure erase or cryptographic erase rather than a surface overwrite, clearing the mapping and the cells the drive actually uses. Knowing which method a given device needs is the whole job; getting it wrong is how ‘destroyed’ data turns up on a resold laptop.
Most jobs come from the same handful of needs: retiring old drives, servers or laptops under GDPR and needing to prove the data is gone; kit being resold, donated or recycled; a business clearing end-of-project material; or a drive that came in for recovery and now needs to leave permanently dead. Each drive gets a certificate of erasure — serial, method and date — for your records and your auditors. Because verified erasure leaves the hardware working, it is cheaper and greener than shredding while the data is just as unrecoverable; where a client genuinely requires physical destruction of the media, we will advise the right route. It is the mirror image of our forensic recovery work — opposite ends of the same bench.
On a hard drive, yes — a verified overwrite replaces the data and there is nothing underneath to bring back. On an SSD we use the controller’s own secure-erase rather than a surface pass, and either way we read the drive back and confirm zero recoverable data before the certificate is issued. We do not certify what we have not verified.
Yes. Every drive is documented with a certificate of erasure listing the drive serial, the method used and the date — the paperwork a data-protection audit expects to see when hardware is decommissioned.
Sometimes. If the drive can be brought up enough to erase, we do it and verify it. If the electronics or mechanics are too far gone to wipe safely in place, an overwrite is not possible and physical destruction of the media is the honest route instead — we will tell you which applies and why, rather than issue a certificate we cannot stand behind.