May 2019
Beginner to intermediate
296 pages
6h 58m
Japanese
Content preview from IT用語図鑑 ビジネスで使える厳選キーワード256
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188
関連用語
用語に関連する話
用語の使用例
総 当 たり攻 撃と
パ スワ ードリスト 攻 撃
総当たり攻撃の例
パスワードが4桁の数字であれば、
0000、0001、0002、...... というよう
に順に試すと、正しいパスワード
と一致した時点でログインでき
る。
総当たり攻撃の対策
同じID での連続ログイン試行を
防ぐため、連続してログインに失
敗した場合はそのアカウントを
ロックするなどの対策が用いら
れる。
パスワードを固定する攻撃
同じID でのログイン失敗でロッ
クされるのを防ぐ対策に対し、同
じパスワードで異なるID を順に
試すリバースブルートフォース
攻撃が用いられる場合がある。
パスワードを 狙う
ログイン ID を固定して、パスワードを順に試す攻撃を総当たり攻撃（ブルートフォース攻撃）
と言う。また、同じパスワードを使 い回している人を狙 い、何らか の 形で 攻 撃 者 が 得 たロ
グ イン I D と パ ス ワ ード の リスト で 不 正 ロ グ イン を 行う 攻 撃 を パ ス ワ ードリスト 攻 撃 と 言う 。
Keyword
165
▶
そうあ たりこうげ き
▶
ぱ す わ ーどりす とこうげ き
「総当たり攻撃とパスワードリスト攻撃だと対策が違うんだね。」
二要素認証と二段階認証
……P190
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.