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To quote the ISM (Australia's military standards for cyber security).

Security Control: 0359; In flash memory media, a technique known as wear levelling ensures that writes are distributed evenly across each memory block. This feature necessitates flash memory being overwritten with a random pattern twice as this helps ensure that all memory blocks are overwritten.

This means that if you select a secure delete function such as DoD 5220.22M, you will need to run it twice (note that this method only writes randomly through one pass). If you do this it will mean that your data should be safe from the average attacker, however if a State is afteryour USB contains the Colonel's Secret Recipe, or evidence of you committing a serious crime, refer again to the ISM:

Security Control: 0360; Following sanitisation, highly classified non-volatile flash memory media retains its classification

In other words Destroy it with fire and spread its ashes to the 4 corners of the globe.

If you don't have anything as valuable as I stated above don't listen to the paranoid people on here about how you can never sanitse it, as frankly no one will have the resources to retrieve the data, unless it is a Nation State or a Global Conglomerate.

You may also be interested in NIST SP800-88 Which is American Guidelines for Sanitisation, although I like the ISM as it is much more succinct.

To quote the ISM (Australia's military standards for cyber security).

Security Control: 0359; In flash memory media, a technique known as wear levelling ensures that writes are distributed evenly across each memory block. This feature necessitates flash memory being overwritten with a random pattern twice as this helps ensure that all memory blocks are overwritten.

This means that if you select a secure delete function such as DoD 5220.22M, you will need to run it twice (note that this method only writes randomly through one pass). If you do this it will mean that your data should be safe from the average attacker, however if a State is after you, refer again to the ISM

Security Control: 0360; Following sanitisation, highly classified non-volatile flash memory media retains its classification

In other words Destroy it with fire and spread its ashes to the 4 corners of the globe.

You may also be interested in NIST SP800-88 Which is American Guidelines for Sanitisation, although I like the ISM as it is much more succinct.

To quote the ISM (Australia's military standards for cyber security).

Security Control: 0359; In flash memory media, a technique known as wear levelling ensures that writes are distributed evenly across each memory block. This feature necessitates flash memory being overwritten with a random pattern twice as this helps ensure that all memory blocks are overwritten.

This means that if you select a secure delete function such as DoD 5220.22M, you will need to run it twice (note that this method only writes randomly through one pass). If you do this it will mean that your data should be safe from the average attacker, however if your USB contains the Colonel's Secret Recipe, or evidence of you committing a serious crime, refer again to the ISM:

Security Control: 0360; Following sanitisation, highly classified non-volatile flash memory media retains its classification

In other words Destroy it with fire and spread its ashes to the 4 corners of the globe.

If you don't have anything as valuable as I stated above don't listen to the paranoid people on here about how you can never sanitse it, as frankly no one will have the resources to retrieve the data, unless it is a Nation State or a Global Conglomerate.

You may also be interested in NIST SP800-88 Which is American Guidelines for Sanitisation, although I like the ISM as it is much more succinct.

2 added 279 characters in body
source | link

To quote the ISM (Australia's military standards for cyber security).

Security Control: 0359; In flash memory media, a technique known as wear l evellinglevelling ensures that writes are distributed evenly across each memory block. This feature necessitates flash memory being overwritten with a random pattern twice as this helps ensure that all memory blocks are overwritten.

This means that if you select a secure delete function such as DoD 5220.22M, you will need to run it twice (note that this method only writes randomly through one pass). If you do this it will mean that your data should be safe from the average attacker, however if a State is after you, refer again to the ISM

Security Control: 0360; Following sanitisation, highly classified non-volatile flash memory media retains its classification

In other words Destroy it with fire and spread its ashes to the 4 corners of the globe.

You may also be interested in NIST SP800-88 Which is American Guidelines for Sanitisation, although I like the ISM as it is much more succinct.

To quote the ISM (Australia's military standards for cyber security).

Security Control: 0359; In flash memory media, a technique known as wear l evelling ensures that writes are distributed evenly across each memory block. This feature necessitates flash memory being overwritten with a random pattern twice as this helps ensure that all memory blocks are overwritten.

This means that if you select a secure delete function such as DoD 5220.22M, you will need to run it twice (note that this method only writes randomly through one pass). If you do this it will mean that your data should be safe from the average attacker, however if a State is after you, refer again to the ISM

Security Control: 0360; Following sanitisation, highly classified non-volatile flash memory media retains its classification

In other words Destroy it.

To quote the ISM (Australia's military standards for cyber security).

Security Control: 0359; In flash memory media, a technique known as wear levelling ensures that writes are distributed evenly across each memory block. This feature necessitates flash memory being overwritten with a random pattern twice as this helps ensure that all memory blocks are overwritten.

This means that if you select a secure delete function such as DoD 5220.22M, you will need to run it twice (note that this method only writes randomly through one pass). If you do this it will mean that your data should be safe from the average attacker, however if a State is after you, refer again to the ISM

Security Control: 0360; Following sanitisation, highly classified non-volatile flash memory media retains its classification

In other words Destroy it with fire and spread its ashes to the 4 corners of the globe.

You may also be interested in NIST SP800-88 Which is American Guidelines for Sanitisation, although I like the ISM as it is much more succinct.

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source | link

To quote the ISM (Australia's military standards for cyber security).

Security Control: 0359; In flash memory media, a technique known as wear l evelling ensures that writes are distributed evenly across each memory block. This feature necessitates flash memory being overwritten with a random pattern twice as this helps ensure that all memory blocks are overwritten.

This means that if you select a secure delete function such as DoD 5220.22M, you will need to run it twice (note that this method only writes randomly through one pass). If you do this it will mean that your data should be safe from the average attacker, however if a State is after you, refer again to the ISM

Security Control: 0360; Following sanitisation, highly classified non-volatile flash memory media retains its classification

In other words Destroy it.