https://atmarkit.itmedia.co.jp/ait/articles/2604/20/news046.html ＠IT ja OpEd, Opinion 2026-04-20T13:00:00+09:00 ChatGPTを「AIへのプロンプトインジェクションは防げない」前提で守る方法　OpenAIが解説 IT,Technology,information technology,news,Computing,Internet,engineer,windows,server,storage,xml,coding,java,database,linux,network,xml,security,design https://image.itmedia.co.jp/ait/articles/2604/20/top_news046.jpg https://atmarkit.itmedia.co.jp/ait/articles/2604/20/news035.html ＠IT ja OpEd, Opinion 2026-04-20T13:00:00+09:00 無料の教材で「使えるAIスキル」を学べる　さくらインターネットがAI検定を開始 IT,Technology,information technology,news,Computing,Internet,engineer,windows,server,storage,xml,coding,java,database,linux,network,xml,security,design https://image.itmedia.co.jp/ait/articles/2604/20/top_news035.jpg https://atmarkit.itmedia.co.jp/ait/articles/2604/20/news024.html ＠IT ja OpEd, Opinion 2026-04-20T13:00:00+09:00 ExcelとPowerPointを行き来する手間解消　Claudeの「コンテキスト共有」と「スキル」で業務自動化 IT,Technology,information technology,news,Computing,Internet,engineer,windows,server,storage,xml,coding,java,database,linux,network,xml,security,design https://image.itmedia.co.jp/ait/articles/2604/20/l_ait_260420_claude_for_excel1.png https://atmarkit.itmedia.co.jp/ait/articles/2604/20/news048.html ＠IT ja OpEd, Opinion 2026-04-20T13:00:00+09:00 「わずか数秒で問題特定」も　New Relic、インシデント解決を迅速化するAI機能群を発表 IT,Technology,information technology,news,Computing,Internet,engineer,windows,server,storage,xml,coding,java,database,linux,network,xml,security,design https://image.itmedia.co.jp/ait/articles/2604/20/top_news048.jpg https://atmarkit.itmedia.co.jp/ait/articles/2604/02/news004.html ＠IT ja OpEd, Opinion 2026-04-20T10:00:00+09:00 Webサイトの表示速度が遅い――それ、「フォント」が原因かも？　気付かぬリスクを無料で診断 IT,Technology,information technology,news,Computing,Internet,engineer,windows,server,storage,xml,coding,java,database,linux,network,xml,security,design https://image.itmedia.co.jp/ait/articles/2604/02/tu_monotype01_w250.jpg https://atmarkit.itmedia.co.jp/ait/articles/2604/20/news017.html ＠IT ja OpEd, Opinion 2026-04-20T07:00:00+09:00 パスワード管理は「覚えない」から「保存しない」に　注目の新技術「HIPPO」とは？ IT,Technology,information technology,news,Computing,Internet,engineer,windows,server,storage,xml,coding,java,database,linux,network,xml,security,design https://image.itmedia.co.jp/ait/articles/2604/20/top_news017.png https://atmarkit.itmedia.co.jp/ait/articles/2604/20/news031.html ＠IT ja OpEd, Opinion 2026-04-20T07:00:00+09:00 日本はアジア最大の標的　Qilinを筆頭とする新興RaaSの最新攻撃戦術 IT,Technology,information technology,news,Computing,Internet,engineer,windows,server,storage,xml,coding,java,database,linux,network,xml,security,design https://image.itmedia.co.jp/ait/articles/2604/20/kt2487_aga01.jpg https://atmarkit.itmedia.co.jp/ait/articles/2604/20/news008.html ＠IT ja OpEd, Opinion 2026-04-20T05:00:00+09:00 仕事を邪魔させない、Windows 11「Windows Update」を快適に使う5つの設定 IT,Technology,information technology,news,Computing,Internet,engineer,windows,server,storage,xml,coding,java,database,linux,network,xml,security,design https://image.itmedia.co.jp/ait/articles/2604/20/l_wi-win11wu5tips01.png https://atmarkit.itmedia.co.jp/ait/articles/2604/20/news001.html ＠IT ja OpEd, Opinion 2026-04-20T05:00:00+09:00 転職するので顧客情報をLINEしてくれ、上司命令だ IT,Technology,information technology,news,Computing,Internet,engineer,windows,server,storage,xml,coding,java,database,linux,network,xml,security,design https://image.itmedia.co.jp/ait/articles/2604/20/title_itsosyo.jpg https://atmarkit.itmedia.co.jp/ait/articles/2604/19/news012.html ＠IT ja OpEd, Opinion 2026-04-19T08:00:00+09:00 いつも使う「ブラウザ拡張機能」や「OSS」が牙をむく　明日からできる対策は？ IT,Technology,information technology,news,Computing,Internet,engineer,windows,server,storage,xml,coding,java,database,linux,network,xml,security,design https://image.itmedia.co.jp/ait/articles/2604/19/top_news012.jpg