Skip to content

Data Erasure vs Degaussing

  • by

Degaussing as well as Data Erasure are techniques for sanitizing the information storage media including HDD, memory cards, SSD, etc. The main purpose of press sanitization is safeguarding businesses & particular users from the chances of information breach & leakage.

Common media sanitization techniques can also be invented in a means to assist organization’s attain regulatory compliance with data protection laws, especially when a storage media moves by way of a a “secondary transaction” like return of leased IT asset, devices refurbishment & reselling, donation, reallocation, and discretion. Federal regulations, internal data security policies and industry standards with regard to information protection mandate the businesses to sanitize their data storage media just before its disposal or reuse.

Though media sanitization methods and standards might differ, the consequence is anticipated to be consistent – the information saved on a media must be not possible to recover by using some data recovery method or maybe tool after the media was sanitized. Let us evaluate Degaussing as well as Data Erasure, the 2 common techniques for sanitizing the press, plus examine their disadvantages and advantages.

What’s Degaussing?

Degaussing is especially utilized for sanitizing magnetic storage media such as for instance magnetic disk, magnetic tapes, and hard disk. It calls for use of a good reverse magnetizing field created utilizing a degausser machine to counterbalance the magnetic field orientation of the storage systems, therefore transforming the saved information into an irretrievable and unreadable state. Nevertheless, as per NIST SP 800 88 Guidelines, “traditional methods like degaussing (for magnetic media) be more complex as magnetic media evolves, as several emerging variants of magnetic recording technologies include media with increased magnetic force. As an outcome, existing degaussers might not have adequate force to successfully degauss such media”. Additionally, degaussing renders the sanitized storage media useless and also results in the generation of deadly e waste.

Limitations and disadvantages of Degaussing

Degaussing could appear easy but is unsafe for business, especially when observed in the context of reliability. Several limitations and disadvantages of degaussing are as below –

Can’t Sanitize Flash Storage Media: Degaussing can’t erase data from electric chips dependent on FLASH NAND technology such as USB flash drives, flash memory cards, then solid state drives. As per NIST SP 800 88 Guidelines, “existing degaussers might not have adequate pressure to degauss evolving magnetic storage media and should not be exclusively relied upon for flash memory based storage devices or maybe magnetic storage devices that have non volatile non magnetic storage.”
Renders the Degaussed Media Unusable: The degaussing method depends on complete and permanent demagnetizing of the magnetic storage media to ruin the saved info. The procedure essentially neutralizes the magnetic field switching the coercivity of its to 0 therefore destroying the capacity of its to store information. The degaussed media can’t be reused and has therefore no energy and nearly nil recurring value from a monetization standpoint.
Expensive Means of Media Sanitization: The expense of utilizing a Degausser is high, and that is probably economically viable for sanitizing big volumes of magnetic media. A National Security Agency (NSA) Evaluated Products List (EPL) listed degausser might cost you upwards of US$18000 that may be costly for many companies esp. SMB from an OPEX standpoint. Furthermore, the degausser, being an actual unit, has limits of utility; in many instances, you will need individual degaussers for sanitizing the press across the actually spread facilities, that will equal to the operating expenses.
Generates E Waste: The e-waste produced because of degaussing is on the list of main sources of accounts and toxins for substantial portion of the complete toxic e-waste.

What’s Data Erasure?

Data Erasure strategy is grounded on overwriting all of the addressable storage places on the press with binary pattern (non sensitive details), therefore rendering the saved data unrecoverable making use of some method or tool. Data erasure is able to sanitize magnetic media like as hard drives and flash memory based storage media including SSD plus flash memory cards. The information erasure method may be applied by implementing an application that initiates read & write instructions on a functioning unit to overwrite the target data with non sensitive information.

Data erasure based media sanitization approaches provide the next innate benefits:

Sanitizes Magnetic & Flash Storage Media: Data erasure method is able to sanitize solid state drives, flash drives, other flash and memory card storage media together with magnetic storage media such as for instance hard disk. It equips organizations and individuals with an extensive media sanitization solution.
Allows Hardware Reuse & Resale: Data erasure utilizes the overwriting technique of information destruction without hampering the primary property of the storage media, thereby retaining the financial value and useful factors of erased hardware for more use.
Generates Zero E Waste: Data erasure is an eco friendly solution which serves the objective of reliable and safe media sanitization without producing some e-waste type. It can help organizations fulfill the e waste obligations of theirs.

The method of data erasure, when applied by way of a software utility, can provide extended and comprehensive more benefits.

Extensive Data Erasure as per Global Standards: Erases hard drives & SSDs utilized in laptop computers, desktops & rackmount storage. Likewise wipes Ios and android devices. Supports NIST 800 88, DoD 5220.22 M & other twenty two International erasure standards.
Compliant Media Sanitization Solution: Generates automatic accounts and certificates of erasure that function as immutable (tamperproof) audit trails for attaining hundred % compliance with common data safety laws – GDPR, SOX, GLBA, HIPAA, and PCI DSS.
Financial and logistic Viability: Centralized cloud based delivery to remove devices and drives at physically spread out facilities with nearly zero logistic constraints & top manageability. Pay-per-use licensing for greatest value, dependent on the actual volume needs.