什麼是一次性密碼 (OTP)?

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突發!黑五 4日限定優惠碼 「HKBFCM2024」
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什麼是一次性密碼 (OTP)?

OTP 是一項安全功能,可為您的帳戶增加一層額外的保護。 OTP 不是使用靜態密碼,而是動態的,並且對單一登入工作階段有效。這可以最大限度地降低未經授權的存取風險,從而增強安全性,尤其是在您的密碼外洩的情況下。

OTP 如何運作?

當您啟用 OTP 時,系統會產生一個唯一的代碼,並透過簡訊、電子郵件或專用應用程式將其發送到您註冊的裝置。您在登入期間輸入此程式碼,它會隨著每次會話而變化,從而增強安全性。

為什麼我應該使用 OTP?

使用 OTP 讓駭客更難存取您的帳戶。即使他們設法獲取您的密碼,如果沒有當前的 OTP,他們也無法登入。

我可以在我的電腦上使用 OTP 嗎?

從電子郵件服務到銀行網站,許多線上平台都提供 OTP 作為附加安全措施。您通常會透過行動裝置或電子郵件收到 OTP,然後在登入過程中將其輸入到電腦上。這是保護您的數位資產的簡單而有效的方法。

OTP 是否適用於所有網站?

雖然 OTP 被廣泛採用,但並非每個網站或服務都支援它。然而,許多主要平台認識到 OTP 對於安全性的重要性,並將其整合到其身份驗證系統中。在依賴 OTP 之前,建議檢查您經常造訪的網站是否提供此額外的保護層。

我可以在筆記型電腦上使用 OTP 嗎?

當然。如果網站或服務支援 OTP,您可以在筆記型電腦上使用它,就像在電腦上一樣。該過程仍然相似 - 您在註冊設備上收到一次性代碼並在登入時輸入。它是一種多功能的安全功能,無論您使用什麼設備,都可以為您的線上狀態添加額外的保護。

如果我沒有收到 OTP 怎麼辦?

如果您沒有收到 OTP,請先檢查您的網路連線並確保您的裝置位於網路範圍內。此外,請確認與您的帳戶相關的電話號碼或電子郵件準確無誤。如果問題仍然存在,請聯絡平台支援人員尋求協助。他們可以提供故障排除指導,並幫助確保您的 OTP 能夠及時送達。

除了簡訊之外,還有其他方法可以接收 OTP嗎?

是的,許多平台都提供簡訊的替代方案,例如身份驗證器應用程式。這些應用程式直接在您的裝置上產生 OTP,無需發送簡訊或電子郵件。它們可以更安全,因為簡訊可能容易受到 SIM 交換攻擊。 Google Authenticator 或 Authy 等身份驗證器應用程式是實現此目的的熱門選擇。

OTP 能讓我的帳號完全安全嗎?

雖然 OTP 顯著增強了安全性,但它並非萬無一失。沒有一個系統能夠完全免受潛在漏洞的影響。透過使用強而獨特的密碼、在可用時啟用多重身份驗證 (MFA) 以及對網路釣魚嘗試保持警惕,保持良好的網路安全衛生至關重要。 OTP 是一個強大的工具,但將其與其他安全措施相結合可以增強您對網路威脅的整體防禦。

我可以使用同一個 OTP 進行多次登入嗎?

不,這就是 OTP 的美妙之處。每個代碼都是唯一的,並且對於單一會話或交易有效。重複使用 OTP 會降低其效能。必須為每次登入嘗試產生並使用新的 OTP,以確保即使程式碼被攔截,它也不會在該特定實例之外發揮作用。

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