WhatsApp是港人最常用的即時通訊軟件，但最近就更新用戶私隱條款，強制要求用戶與Facebook共享資訊，引起不少用家不滿表示紛紛棄用WhatsApp轉Signal，連全球首富Tesla創辦人Elon Musk亦在Twitter發文「 Use Signal 」呼籲轉用Signal！今次就同大家介紹一下Signal安裝及申請帳戶教學，及其保障私隱功能賣點，各位準備轉會用新即時通訊軟件開account之前可以了解一下！
Signal介紹
免費即時通訊軟件Signal由美國公司Open Whisper Systems所開發，支援iPhone、iPad、Android、Windows、Mac、 Linux等平台，用法與WhatsApp差異不大，用家同樣可以發送文字訊息、語音訊息、Emoji表情符號、圖片、GIF等，另支援群組對話（Group Chat）、閱後即焚自動刪除訊息。
安裝+申請Signal帳戶方法
只要在裝置上下載Signal通訊軟件，首次使用時輸入電話號碼，即可註冊登記帳戶。為加強保安防止被盜用號碼登入，用家亦需要自訂一組PIN密碼，當想在新手機或裝置登入帳戶時就需要輸入PIN碼才能使用，即按圖睇文字詳情：
Signal特點
Signal被不少用家認為擁有最高加密標準，採用長時間點對點加密技術及隨機的加密方式，伺服器加密使用開源協定作加密技術，由於背後為非牟利組織，只儲存metadata（描述資訊）及用戶資訊，而Telegram及WhatsApp背後公司為VK及Facebook，兩者都以收集用戶資訊作廣告用途為收入來源，所以Signal相對較為保障用戶資訊。
Signal有不少保護私隱功能，用家可以在「私隱權」頁面中設定隱藏最後上線時間、隱藏已讀標記等。另外閱後即焚功能上，用家可自設消除訊息時間，且支援加密群組視像通話及面部模糊功能，以保障自己及其他用家私隱。
來源：signal
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