Information can be catastrophically compromised by installation of malicious software (malware) on a computing device. Which of the following is a correct statement about malware? O Malware is relatively easy to detect on a device, and once detected relatively easy to "clean" from that device. O Malware cannot ever be installed by a single click on a link. It requires taking explicit, visible steps to install such software. O Malware attacks are rare, causing a relatively small fraction of computer security problems. O If a device's anti-virus (anti-malware) software is up to date, it is a complete defense against malware because it spots problems in advance. O Once installed, malware can harvest personal information (such as from an address book to propagate itself to a person's contacts).