Hot Topics in Tech: Russian hackers of Dow Jones said to have sought trading tips. High speed trading becomes US election issue. Regulators bring "spoofing" charges against a Chicago firm. UK start-up claims blockchain breakthrough in payment processing. Nasdaq eyes dark-pool surveillance market."Flash Boys" heroes ask for stock exchange status.

The Inbox: Listener questions and comments

• Question from TCity - What is the status of the regulatory proposal to register Algo developers? Do you feel this has a good chance of being passed?
• Question from Tom M., Boca Raton, FL - Can you guys please discuss the net neutrality debate on your program and its possible ramifications in the trading world? Thank you for your excellent program even if much of it goes over my head.
• Question from A. Butler - Hello mark and team. I would like to submit a discussion topic for the trading tech talk program. Can you please discuss the benefits and drawbacks of AWS when it comes to financial services? It seems like AWS has become the backbone of many other industries but does not seem to get much mention in the trading space. Is this simply due to the somewhat slow adoption of cloud infrastructure in the financial markets?