At the Chaos Communication Congress in Berlin, Professor Stefan Katzenbeisser recently warned that hackers could use DDoS attacks to shut down train switching systems.

"'Trains could not crash, but service could be disrupted for quite some time,' Katzenbeisser told Reuters on the sidelines of the convention," writes The Hacker News' Mohit Kumar.

"Prof. Katzenbeisser believes the system is relatively secure from hackers under normal circumstances," Kumar writes. "However, the computer science expert from Technische Universitat Darmstadt warns that encryption keys, used to protect the communications, could pose risks."

Go to "Train-switching system can be vulnerable to DDoS attack" to read the details.

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