Over 350,000 of the world’s top 1 million web sites may be running vulnerable software -- which the recent WannaCry cyber attack has shown can spell considerable risk of hacker exploitation. According to the Menlo Security State of The Web report, software on some web sites dates back to over a decade ago, as far back as the year 2000. The cyber security research reveals that nearly half (46%) of the Internet’s top 1 million web sites, as ranked by Alexa, are risky, and that 1 in 5 domains run vulnerable software.