A glitch of unknown origins that closed the Nasdaq stock exchange for more than two hours on Thursday has raised concerns about overall market safety from cyberattacks and renewed calls for greater regulation. Whether the shutdown was caused by a programming error or a malicious attack is still unclear, Warwick Ashford writes. "Strong security systems and safeguards need to be in place to ensure that the possibility of such attacks being successful is kept to a minimum," security expert Graham Cluley wrote in a blog post about the matter.
Analysts believe Nasdaq shutdown will bring regulatory, security measures
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