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  2. UnitedHealth's cyberattack should be a 'wake-up call' for ...

    www.aol.com/finance/unitedhealths-cyberattack...

    The attacks happen in all industries, but because healthcare entities are required to report them, they draw criticism for being ill-prepared and under-resourced.

  3. Communication is key in managing cyberattack: Optum CEO - AOL

    www.aol.com/finance/communication-key-managing...

    The American Hospital Association (AHA) has advised health systems to disconnect from Change Healthcare and to create alternate plans in the event the attack continues for longer than expected.

  4. UnitedHealth says 'Blackcat' ransomware group behind hack at ...

    www.aol.com/news/unitedhealth-confirms-blackcat...

    The hack, disclosed last Wednesday, has had a knock-on effect on players across the U.S. healthcare system, as disruptions triggered by the attack have impacted electronic pharmacy refills and ...

  5. Timing attack - Wikipedia

    en.wikipedia.org/wiki/Timing_attack

    In cryptography, a timing attack is a side-channel attack in which the attacker attempts to compromise a cryptosystem by analyzing the time taken to execute cryptographic algorithms. Every logical operation in a computer takes time to execute, and the time can differ based on the input; with precise measurements of the time for each operation ...

  6. Medical device hijack - Wikipedia

    en.wikipedia.org/wiki/Medical_device_hijack

    A medical device hijack (also called medjack) is a type of cyber attack.The weakness they target are the medical devices of a hospital. This was covered extensively in the press in 2015 and in 2016.

  7. Time/memory/data tradeoff attack - Wikipedia

    en.wikipedia.org/.../Memory/Data_Tradeoff_attack

    A time/memory/data tradeoff attack is a type of cryptographic attack where an attacker tries to achieve a situation similar to the space–time tradeoff but with the additional parameter of data, representing the amount of data available to the attacker. An attacker balances or reduces one or two of those parameters in favor of the other one or ...

  8. UnitedHealth issues breach notification on Change Healthcare hack

    www.aol.com/news/unitedhealth-issues-breach...

    In a May announcement, the U.S. Department of Health and Human Services said healthcare providers can ask UnitedHealth to notify people impacted by the hack on their behalf.

  9. Traffic analysis - Wikipedia

    en.wikipedia.org/wiki/Traffic_analysis

    Traffic analysis method can be used to break the anonymity of anonymous networks, e.g., TORs. [1] There are two methods of traffic-analysis attack, passive and active. In passive traffic-analysis method, the attacker extracts features from the traffic of a specific flow on one side of the network and looks for those features on the other side of the network.