Going dark: Service disruptions at stock exchanges and brokerages

Going dark: Service disruptions at stock exchanges and brokerages

Are you a bull or a bear? If you can’t access your data and money, do your sentiments about the market still matter?



I was recently asked about how software vulnerabilities in stock trading apps and platforms might put users’ finances and personal data at risk. Given the dependence of today’s societies and economies on technology along with the skyrocketing interest in day trading of late, it’s only natural that concerns about the increasing number and severity of security loopholes in all manner of software applications should rise in lockstep. And that’s on top of numerous other cyberthreats that require the continued attention of organizations and people, including those involved with stock trading.


Recently, a string of disruptions that have plagued stock exchanges and brokerages have thrown into stark relief another problem: an outage, too – even if it’s caused by a technical glitch – can ultimately impact the finances of people and organizations. While this issue typically commands less public attention, incidents that halt trading on platforms where billions of dollars normally move every day may even impact investor confidence and have knock-on effects for countries’ economies. Indeed, I spoke about the importance of ensuring the availability of trading technologies back in 2018; if recent history is any indication, things don’t appear to be improving.


The availability of data and systems is, along with their confidentiality and integrity, one of the pillars of the venerable CIA triad, the concept at the heart of information security and the guiding principle of any org ..

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