如何防范手机黑客ThegovernmenthackofaniPhoneusedbyaSanBernardinokillerservesasareminderthatphonesandotherelectronicdevicesaren'timpenetrablevaults.Whilemostpeoplearen'ttargetsoftheNSA,FBIoraforeigngovernment,hackersarelookingtostealthefinancialandpersonalinformationofordinarypeople.Yourphonestoresmorethanjustselfies.Youremailaccountonthephone,forinstance,isagatewaytoresettingbankingandothersensitivepasswords.Likewashingyourhandsandbrushingyourteeth,alittle'cyberhygiene'cangoalongwaytowardpreventingdisaster.LOCKYOURPHONEWITHAPASSCODEFailingtodosoislikeleavingyourfrontdoorunlocked.Afour-digitpasscode-andanaccompanyingself-destructfeaturethatmightwipeaphone'sdataaftertoomanywrongguesses-stumpedtheFBIforweeksandforcedthemtobringinoutsidehelp.Usingsixdigitsmakesapasscode100hardertoguess.Andifyouwanttomakeitevenharder,youcanaddlettersandothercharacterstofurtherincreasethenumberofpossiblecombinations.TheseareoptionsonbothiPhonesandAndroid.TheiPhone'sself-destructfeatureissomethingyoumustturnoninthesettings,underTouchIDPasscode.Doso,andthephonewipesitselfcleanafter10failedattempts.Butthe10attemptsapplytoyourguesses,too,ifyouforgetyourpasscode,orifyourkidsstartrandomlypunchinginnumbers.Androidhasasimilarfeature.Bothsystemswillalsointroducewaitingperiodsafterseveralwrongguessestomakeittoughtotryallcombos.Biometrics,suchasfingerprintscanners,canactasashortcutandmakecomplexpasscodeslessofapain.政府雇佣黑客成功破解圣贝纳迪诺案件杀手的iPhone数据的案例，警醒我们，手机和其他电子设备并不像银行金库那样安全可靠，牢不可破。虽然大多数人的金融账户和个人信息并非国家安全局、联邦调查局，或外国政府的调查目标，但却时刻可能成为黑客的窃取对象。您的手机中不仅存有自拍，还有许多其他关键信息。例如，黑客可通过电子邮箱账户，重置您的银行账户密码和其他敏感密码。“网络清洁”虽然是不起眼的小事，但就像洗手和刷牙一样，可以为您省去大麻烦。使用锁屏密码手机不设密码锁，就像家里没人、门户大开一样，毫无安全可言。别小看这一串四位数密码，输错太多次的话，手机就会自动抹掉数据。连FBI调查员都被这难倒，不得不请外援帮助。六位密码要比四位密码难猜100倍。如果想让密码更难猜，可以添加些字母或其他字符，这会进一步降低猜中几率，增加破解难度。iPhone和安卓手机都有这些选项。要打开iPhone的数据自动销毁功能，你可以在设置里面的TouchIDPasscode选项下操作。这样设置以后，输错密码10次，手机就会自动抹掉数据。但是，如果您真忘记了密码，或者熊孩子随手乱按数字，手机也会在密码输错10次后自动销毁数据。安卓系统也有类似的功能。密码输错几次后，iPhone和安卓系统都会进入停用模式，所以很难再继续试密码。我们还能通过指纹验证等生物识别技术，方便快捷地进行验证，免去输入密码的麻烦。USEENCRYPTIONMuchtotheFBI'sdispleasure,iPhonesrunningatleastiOS8offerfull-diskencryptionbydefault.Thatmeansthattheinformationstoredonthephonecan'tbeextracted-byauthoritiesorbyhackers-andreadonanothercomputer.Ifthephoneisn'tunlockedfirst,anyinformationobtainedwouldbescrambledandunreadable.WithAndroid,however,youtypicallyhavetoturnthatoninthesettings.Google'spolicyrequiresmanyphoneswiththelatestversionofAndroid,includingitsownNexusphones,toofferencryptionbydefault.But,accordingtoGoogle,only2.3percentofactiveAndroiddevicescurrentlyarerunningthatversion.SETUPDEVICEFINDERSFindMyiPhoneisn'tjustforfindingyourphoneinthecouchcushions.Ifyourdevicedisappears,youcanputitinLostMode.Thatlocksyourscreenwithapasscode,ifitisn'talready,andletsyoudisplayacustommessagewithaphonenumbertohelpyougetitback.The...