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The “wiki/src/doc/advanced_topics/cold_boot_attacks.zh_TW.po” file was changed. 05/27/2024
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This can be achieved using a technique called [[!wikipedia cold boot attack]]. To prevent such attacks, the data in RAM is overwritten by random data when you shut down Tails.
這種技術稱之為<span
class="definition">[[!wikipedia Cold_boot_attack desc="cold boot
attack"]] </span>。為防止這類攻擊，當關閉 Tails
利用隨機資料來覆寫 RAM 資料。它可以清除
使用電腦期間留下的記錄。
05/27/2024
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The “wiki/src/doc/advanced_topics/cold_boot_attacks.zh_TW.po” file was changed. 02/27/2024
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<p>See how we implement this [[memory
erasure|contribute/design/memory_erasure]], for example, if you want to
implement this feature outside of Tails.</p>
 
02/27/2024
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<div class="next">
 
02/27/2024
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</div>
 
02/27/2024
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<p>In a <a
href="https://www.forensicfocus.com/stable/wp-content/uploads/2011/08/cold_boot_attack_for_forensiscs1.pdf">research
report from 2011</a>, Defense Research and Development Canada concluded that
cold boot attacks can be useful in some cases to acquire data in memory but are
not a panacea and have many drawbacks dictated by the laws of physics, which
cannot be overcome by the technique. The authors recommend to only use cold
boot attacks as a last resort when all other avenues have been exhausted.</p>
 
02/27/2024
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<p>As far as we know, cold boot attacks are not a common procedure for
data recovery.</p>
 
02/27/2024
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<div class="attack">
 
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After a computer is powered off, the data in RAM disappears rapidly, but it can remain in RAM up to several minutes after shutdown. An attacker having access to a computer before the data in RAM disappears completely could recover important data from your session.
電腦關閉之後，RAM 之中的資料會立即消失，但也可能會在RAM 保留幾分鐘之久。攻擊者若能在其完全消失前接近這台電腦，或許可以從用戶使用期間來恢復一些重要的資料。
02/27/2024
mdrights

Translation approved
Moreover, an attacker having physical access to the computer *while Tails is running* can recover data from RAM as well. To avoid that, learn the different methods to [[shutdown Tails|doc/first_steps/shutdown]] rapidly.
再者，攻擊者若能*當 Tails 正在運行時* 實地接近電腦，也可以從 RAM 來回復資料。要避免此情況，學習可快速 [[關閉 Tails|doc/first_steps/shutdown]]的各種方式。
05/14/2020
mdrights

Translation approved
While using a computer, all the data manipulated is written temporarily in [[!wikipedia Random-access_memory desc="RAM"]]: texts, saved files, but also passwords and encryption keys. The more recent the activity, the more likely it is for the data to still be in RAM.
使用電腦時，所有的資料操作會暫時地寫在[[!wikipedia Random-access_memory desc="RAM"]]： 含文檔、已儲存的檔案以及密碼與加密密鑰等。有更多近期活動，RAM 更可能將這些資料仍暫時儲存起來。
05/14/2020
mdrights

Translation approved
[[!meta title="Protection against cold boot attacks"]]
[[!meta title="防護免於冷開機攻擊"]]
05/14/2020
admin

Changes committed
Changes committed 11/02/2018
admin

Translation changed
While using a computer, all the data manipulated is written temporarily in [[!wikipedia Random-access_memory desc="RAM"]]: texts, saved files, but also passwords and encryption keys. The more recent the activity, the more likely it is for the data to still be in RAM.
使用電腦時，所有的資料操作會暫時地寫在[[!wikipedia Random-access_memory desc="RAM"]]： 含文檔、已儲存的檔案以及密碼與加密密鑰等。有更多近期活動，RAM 更可能將這些資料仍暫時儲存起來。
11/02/2018
admin

Changes committed
Changes committed 11/02/2018
admin

Translation uploaded
[[!meta title="Protection against cold boot attacks"]]
[[!meta title="防護免於冷開機攻擊"]]
11/02/2018
admin

Translation uploaded
While using a computer, all the data manipulated is written temporarily in [[!wikipedia Random-access_memory desc="RAM"]]: texts, saved files, but also passwords and encryption keys. The more recent the activity, the more likely it is for the data to still be in RAM.
使用電腦時，所有的資料操作會暫時地寫在[[!wikipedia Random-access_memory desc="RAM"]]： 含文檔、已儲存的檔案以及密碼與加密密鑰等。有更多近期活動，RAM 更可能將這些資料仍暫時儲存起來。
11/02/2018
admin

Translation uploaded
Moreover, an attacker having physical access to the computer *while Tails is running* can recover data from RAM as well. To avoid that, learn the different methods to [[shutdown Tails|doc/first_steps/shutdown]] rapidly.
再者，攻擊者若能*當 Tails 正在運行時* 實地接近電腦，也可以從 RAM 來回復資料。要避免此情況，學習可快速 [[關閉 Tails|doc/first_steps/shutdown]]的各種方式。
11/02/2018
emmapeel

Translation uploaded
Translation uploaded 03/13/2018

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