[解析]
（1）段落大意题。根据第三段中In many cases，individuals are tricked into handing over password details by phishing emails and other social engineering techniques.Hackers have sought to break into apps and steal entire password databases as well.Passwords are also under attack from new technology，such as automated programs that can rapidly try to guess them，or can try stolen passwords on multiple online accounts.（在许多情况下，个人通过网络钓鱼邮件和其他社会工程技术被骗提供密码细节。黑客还试图侵入应用程序，窃取整个密码数据库。密码也受到新技术的攻击，比如自动程序可以快速猜测密码，或者在多个在线账户上尝试窃取密码）可知，第三段主要讲为什么密码很难保护。故选D项。
（2）推理判断题。根据倒数第二段中But there are still risks associated with the use of biometric authentication.Unlike passwords，biometrics cannot be changed.This means such data must be closely guarded for privacy purposes and to prevent spoofing—hackers trying to trick cameras or sensors with photos，or masks of their victim. "Biometric authentication and passwordless authentication has its own attack surface，" said Paul Smith，director of security research at CyberPek.His team revealed that it had found a design problem which would allow potential attackers to bypass facial recognition login by injecting a spoofed photo of a user's face into the process.（但使用生物特征认证仍然存在风险。与密码不同，生物识别是无法更改的。这意味着出于隐私的考虑，这些数据必须被严密保护，以防止黑客试图用受害者的照片或面具来欺骗摄像头或传感器。CyberPek安全研究主管保罗•史密斯（Paul Smith）表示："生物特征认证和无密码认证都有自己的攻击面。"他的团队透露，他们发现了一个设计问题，即潜在的攻击者可以通过在登录过程中注入伪造的用户面部照片来绕过面部识别登录）可知，我们能从这篇文章中推断出生物特征认证有自己的一系列问题。故选B项。
（3）观点态度题。根据最后一段Eric Brown，founder of TAK Cyber，a cyber research and advisory company，argued that while sensitive applications may rapidly shift from passwords，other websites have less motivation to update their systems. "You'll never get rid of them，" he said. "We're never going to get to the post﹣password era.""（网络研究和咨询公司TAK Cyber的创始人埃里克•布朗（Eric Brown）认为，尽管敏感应用程序可能很快就不再使用密码，但其他网站就没有动力更新它们的系统。"你永远也摆脱不了他们，"他说。"我们永远不会进入后密码时代。"）可知，埃里克•布朗对无密码的未来并不看好，持悲观态度。故选C项。
（4）标题归纳题。根据第一段The start﹣up that attracted the largest investment in the history of cybersecurity，of more than half a billion dollars，has a simple goal：a passwordless future.（这家初创公司吸引了网络安全史上最大的投资，超过5亿美元，它的目标很简单：一个无密码的未来）"以及第四段"Since the need to replace the easily forgotten and highly hackable strings of letters and numbers that we use to access everyday life has become even more urgent，the race to replace the password is under way，with biometric﹣based security emerging as one of the most sought﹣after solutions.（由于替换我们用来访问日常生活的容易忘记且极易被黑客入侵的字母和数字字符串的需求变得更加迫切，替换密码的竞赛正在进行中，基于生物识别的安全技术成为最受欢迎的解决方案之一）可知，本文主要讲很多公司都投入到无密码研究中，再根据倒数第二段But there are still risks associated with the use of biometric authentication.Unlike passwords，biometrics cannot be changed.This means such data must be closely guarded for privacy purposes and to prevent spoofing—hackers trying to trick cameras or sensors with photos，or masks of their victim.（但使用生物特征认证仍然存在风险。与密码不同，生物识别是无法更改的。这意味着出于隐私的考虑，这些数据必须被严密保护，以防止黑客试图用受害者的照片或面具来欺骗摄像头或传感器）以及最后一段中The biggest obstacle standing in the way of the start﹣ups hoping to kill the password is how to change years of habit.（对于那些希望消灭密码的初创企业来说，最大的障碍是如何改变多年来的习惯）可知，无密码研究中还存在许多问题，到底能不能达到，我们并不知道，所以D项"Killing the password：a cure or a fantasy？（消除密码：治愈还是幻想？）"是本文最好的标题。故选D项。
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