Be careful with malware ads on Google Search. This happens fairly regularly, and in some cases can mean a direct loss of money, e.g. if you search for 'blockchain', instead of the online Bitcoin wallet showing up, Google ads often points to a malware that is a phishing site and occasionally people fall for it and lose all their Bitcoins [1]. This has been going on for a long time [2][3].

[1] https://www.reddit.com/r/Bitcoin/comments/27j1gd/i_had_53_bt...

[2] https://www.reddit.com/r/Bitcoin/comments/2pm4tx/blockchaini...

[3] https://www.reddit.com/r/Bitcoin/comments/4e99po/blokchalini...