Wiping Standards and Time Estimates Explained
In this age of data concern, data security has become a critical component for the organizations who are handling sensitive data. So, whether you are decommissioning storage devices or preparing system for reuse or resale, simply deleting files is never the right option. This is where the proper data sanitization comes into play. Further, this ensures that the information can be restored using any high-end forensic toolkit.
Data wiping, which follows the defined security standards, is one of the best methods of secure deletion. They are characterized by differences in degrees of security, complexity and time taken to complete the process. Being aware of these differences help organizations to select the most appropriate approach based on their security requirements and operational timelines.
In this article, we will walk you through the prominent data wipe security standards and realistic time info for each standard.
Wiping Standards and Time Required
Wiping data is the means to delete the data from disk or any storage device without the possibility of recovery. There are different versions of wiping that vary in security and time-consuming, depending on the storage size and the number of overwrite passes.
With this quick overview of the standards mentioned below, consider SysTools Data Wipe Software as an example, which offers a variety of wiping methods with their approximate wiping times.
1. Zero Fill (1–2 Passes)
This Zero Fill is the simplest and fastest method of wiping information. Zero fills the whole drive with zeros, with one or two passes.
Security Level:
- Basic level of protection
- Appropriate for non-sensitive or low-risk data
- But recoverable by advanced forensic recovery tools
| Factor | Typical Speed | Estimated Time for 1 TB |
| High-Performance HDD (7200 RPM) | ~130–210 MB/s | ~1.5 – 3 hours |
| Standard Laptop HDD (5400 RPM) | ~60–100 MB/s | ~3 – 5 hours |
| USB 2.0 Connection (HDD/SSD limited) | ~30–40 MB/s | ~7 – 10+ hours |
| SATA SSD | ~400–550 MB/s | ~30 – 45 minutes |
| NVMe SSD (PCIe Gen3) | ~1500–3500 MB/s | ~5 – 15 minutes |
| NVMe SSD (PCIe Gen4/5) | ~5000–12000+ MB/s | ~2 – 5 minutes |
| External SSD (USB 3.0/3.1) | ~400–1000 MB/s | ~20 – 45 minutes |
Use Case
This method is commonly used by the users where the speed is the first priority than deep level security concerns.
2. US DoD 5220.22-M (3 Passes)
Common data shredding standard created by U.S. Department of Defense (DoD 5220.22-M). It applies three passes of overwriting with various patterns.
Security Level
- Solid against most recovery methods
- Ideal for business and enterprise
| Configuration | Estimated Time for 1 TB |
| HDD (Internal SATA) | ~6 – 12 hours |
| HDD (USB 3.0) | ~9 – 15 hours |
| HDD (USB 2.0) | ~24 – 30+ hours |
| SSD (SATA / NVMe – Overwrite Method) | ~2 – 6 hours |
Use Case
Best suited for cases where a guarantee of security, coupled with a certain range of efficiency.
3. British HMG IS5 (3 Passes)
Developed from UK government guidelines, this is a standard which is meant to secure data from hardware hacking and other professional-grade recovery tools.
Security Level
- High level of data protection
- Trusted in regulated environments
| Device / Connection Type | Estimated Time for 1 TB |
| HDD (Internal SATA) | ~8 – 10 hours |
| HDD (USB 3.0) | ~10 – 14 hours |
| HDD (USB 2.0) | ~24+ hours |
| SSD (Internal SATA / NVMe) | ~2 – 4 hours |
| SSD (USB 3.0) | ~3 – 6 hours |
| SSD (USB 2.0) | ~8 – 12+ hours |
Use Case
Ideal for organizations with sensitive data tuned to higher levels of protection by regulation.
4. Russian GOST-R-50739-95 (3 Passes)
This approach used random patterns to overwrite existing data making it more difficult to predict or reconstruct prior data states.
Security Level
- Advanced protection using randomization
- More resistant to forensic recovery
| Connection / Device Type | Estimated Time for 1 TB |
| HDD (Internal SATA) | ~6 – 8 hours |
| HDD (USB 3.0) | ~8 – 10 hours |
| HDD (USB 2.0) | ~20+ hours |
| SSD (Internal SATA) | ~2 – 4 hours |
| SSD (USB 3.0) | ~3 – 5 hours |
| SSD (USB 2.0) | ~10 – 15+ hours |
Use Case
Recommended if more randomness or unpredicitablity is required in the wiping process.
5. NATO Standard (7 Passes)
NATO standard increases the overwrite process from the base three to seven, making data destruction much more reliable.
Security Level
- Very high security
- Resistance to new recovery techniques
| Configuration | Estimated Time for 1 TB (7 Passes) |
| HDD (Internal SATA) | ~21 – 24 hours |
| HDD (USB 3.0) | ~24 – 30 hours |
| HDD (USB 2.0) | ~3 days or more |
| SSD (SATA) | ~7 – 14 hours* |
| SSD (NVMe / High-Speed) | ~4 – 10 hours* |
| SSD (USB 3.0 External) | ~10 – 18 hours* |
| SSD (USB 2.0 External) | ~1.5 – 2+ days* |
Use Case
Designed for defence level, or extremely sensitive data environments, where there is risk of data exposure.
6. Peter Gutmann Method (35 Passes)
This is among the most extensive ways of cleaning data. This method has 35 overwrite passes with a mixture of patterns to remove any remaining traces of data.
Security Level
- Maximum possible data destruction
- Built for old school storage technologies & edge case
| Factor | Estimated Time for 1 TB |
| HDD (Internal SATA) | ~4.5 – 5 days |
| HDD (USB 3.0) | ~6 – 8 days |
| HDD (USB 2.0) | ~14+ days |
| SSD (Internal SATA / NVMe) | Not recommended (use Secure Erase – minutes instead) |
| SSD (USB / External) | Not applicable / ineffective (controller-level erase required) |
Use Case
Applicable to the most sensitive areas, where nothing less than total destruction of data is acceptable, but most likely an overkill for modern drives.
Factors Affecting Wiping of Information Time
Here are the several factors will determine how long it takes to wipe information:
Drive Type and Speed
- Faster drives like 7200 RPM HDDs or SSDs complete the wiping quicker than slower ones.
Connection Interface
- SATA in Board: More Stable and Faster
- USB 3.0: Moderate performance
- USB 2.0: Significantly slower
Number of Passes
- Yes, every subsequent pass multiplies the time it will take to wipe.
System Performance
- Performance can be affected through CPU, RAM and background process.
Choosing the Right Wipe Standard
Choosing appropriate wiping method is based on your requirements:
For Quick Erasure
- Zero Fill is sufficient
- Ideal for non-sensitive environments
Business Use
- A good middle ground are US DoD or GOST methods
Compliance and Regulations
- Improving Data Protection With British HMG IS5
Maximum Security
- Deep-level sanitization is offered by NATO or Gutmann methods
However, it should be emphasized that higher-pass methods increase processing time significantly without providing potential benefit for most up-to-date storage devices.
Final Takeaway
In this piece of information, we have come to know what are the data wiping standards and how much time a single method can take. However, different security standards offer varying levels of overwriting protection. Each method has its own pros and cons, depending mostly on the user time and security requirements. The basic methods like Zero Fill are fast but lack deep data sanitization like NATO and Gutmann. Hence, by picking the right wiping approach, businesses can safeguard their sensitive information.
