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Can anyone explain what happens why I enable he overwrite function with BB, how does it ensure the data cannot be recovered if I overwrite a. Supercedes AFSSI , 15 April OPR: HQ AFCA/SYSS (MSgt Michael E. Bishop). Certified by: HQ AFCA/SYS (Ronald G. Goessman). title to AFSSI and changes AFCERT Advisories to Time Follow procedures in AFSSI , Remanence Security (will convert to.

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Government contracts have been discovered on hard drives found in Agbogbloshiethe unregulated e-waste centre in Ghana.

Archived from the original PDF on Many data eradication programs also provide multiple overwrites so that they support recognized government atssi industry standards, though a single-pass overwrite is widely considered to be sufficient for modern hard disk drives. Software-based data erasure uses a disk accessible application to write a combination of ones, zeroes and any other alpha numeric character also known as the “mask” onto each hard disk drive sector.

Increased storage of sensitive data, combined with rapid technological change and the shorter lifespan of Afsai assets, has driven the need for permanent data erasure of electronic devices as they are retired or refurbished. The system frequently writes to the drive location s where the data was inadvertently afsso or suspected to be written.

Hard drives that are not properly erased before the computer is disposed of can be reopened, exposing sensitive information. Software-based overwriting uses a software application to write a stream of zeros, ones or meaningless pseudorandom data onto all sectors of a hard disk drive.

Data erasure sometimes referred to as data clearing or data wiping is a software-based method of overwriting the data that aims to completely destroy all electronic data residing on a hard disk drive or other digital media by using affssi and ones to overwrite data onto all sectors of the device. Data erasure can also bypass the Operating System OS.


Strict industry standards and government regulations are in place that force organizations to mitigate the risk of unauthorized exposure of confidential corporate and government data.

Failure to comply can result in fines and damage to company reputation, as well as civil and criminal liability.

Air Force System Security Instructions AFSSI

By accessing the entire hard drive, data erasure eliminates the risk of data remanence. BB’s simple overwrite is not explained anywhere, why? New flash memory -based media implementations, such as solid-state drives afsi USB flash drives can cause data erasure techniques to fail allowing remnant data to be recoverable.

List of data-erasing 5002. Acid solutions should be used in a well-ventilated area only by qualified personnel. Data can sometimes be recovered from a broken hard drive.

Overwriting programs that operate through the OS will not always perform a complete erasure because they cannot modify the contents of the hard drive that are actively in use by that OS. Find where written, purge affected systems and contaminated backups. Overwriting Hard Drive Data: Software-driven data erasure could also be compromised by malicious code. Drives with this capability are known as self-encrypting drives SEDs ; they are present on most modern enterprise-level laptops and are increasingly used in the enterprise to protect the data.

E-waste presents a potential afssu threat to individuals and exporting countries.

Why no standardised erasing patterns, to ensure truer Data Sanitization: Data erasure can be deployed over a network to target multiple PCs rather than having afszi erase each one sequentially.

  ISO 14692-3 PDF

Also, compromised networks and laptop theft and loss, as well as that of other portable media, are increasingly common sources of data breaches. Extreme caution must be observed when handling acid solutions. Government Communications Security Bureau.


The data is time sensitive i. Can anyone explain what happens why I enable he overwrite function with BB, how does it ensure afssii data cannot be recovered if I overwrite a file on a hard disk or usb stick? While afswi are many overwriting programs, only those capable of complete data erasure offer full security by destroying the data on all areas of a hard drive.

Applies to modern magnetic media only. From Wikipedia, the free encyclopedia.

AFSSI | BleachBit

Application of an abrasive substance emery wheel or disk sander to a magnetic disk or drum recording surface. Data erasure software should provide the user with a validation certificate indicating that the overwriting procedure was completed properly.

Department of Computer Science, University of Auckland. To protect the data on lost or stolen media, some data erasure applications remotely destroy the data if the password is incorrectly entered. Organized criminals in Ghana commonly search the drives for information to use in local scams.

Then, reload software and data files from uncontaminated backup. Disk encryption before use prevents this problem.