Patents by Inventor John Liefert

John Liefert has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230179570
    Abstract: A method to create a serial wire speed firewall that can monitor and enforce security policy on a CAN buy network and prevent cyber-attacks.
    Type: Application
    Filed: December 6, 2021
    Publication date: June 8, 2023
    Inventors: Steven Adams, Maureen Langevin, Christine Murphy, Toby Avino, John Liefert, William O'Hern, Daniel Sheleheda, Jayaraman Ramachandran
  • Patent number: 11570185
    Abstract: An insider attack resistant system for providing cloud services integrity checking is disclosed. In particular, the system utilizes an automated integrity checking script and virtual machines to check the integrity of a service. The system may utilize the integrity checking script and virtual machines to execute a set of operations associated with the service so as to check the integrity of the service. When executing the set of operations, the system may only have access to the minimum level of access to peripherals that is required for each operation in the set of operations to be executed. After each operation is executed, the system may log each result for each operation, and analyze each result to determine if a failure exists for any of the operations. If a failure exists, the system may determine that a change in an expected system behavior associated with the service has occurred.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: January 31, 2023
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
  • Publication number: 20200053107
    Abstract: An insider attack resistant system for providing cloud services integrity checking is disclosed. In particular, the system utilizes an automated integrity checking script and virtual machines to check the integrity of a service. The system may utilize the integrity checking script and virtual machines to execute a set of operations associated with the service so as to check the integrity of the service. When executing the set of operations, the system may only have access to the minimum level of access to peripherals that is required for each operation in the set of operations to be executed. After each operation is executed, the system may log each result for each operation, and analyze each result to determine if a failure exists for any of the operations. If a failure exists, the system may determine that a change in an expected system behavior associated with the service has occurred.
    Type: Application
    Filed: October 21, 2019
    Publication date: February 13, 2020
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
  • Patent number: 10454956
    Abstract: An insider attack resistant system for providing cloud services integrity checking is disclosed. In particular, the system utilizes an automated integrity checking script and virtual machines to check the integrity of a service. The system may utilize the integrity checking script and virtual machines to execute a set of operations associated with the service so as to check the integrity of the service. When executing the set of operations, the system may only have access to the minimum level of access to peripherals that is required for each operation in the set of operations to be executed. After each operation is executed, the system may log each result for each operation, and analyze each result to determine if a failure exists for any of the operations. If a failure exists, the system may determine that a change in an expected system behavior associated with the service has occurred.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: October 22, 2019
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
  • Patent number: 10425419
    Abstract: A system for providing access control in a cloud includes a software defined network including a software defined network controller. The system is configured to authenticate user access using multi-factor authentication. If the user is authorized to access a cloud resource the software defined network controller sends instructions to insert layer 3 and 4 user-specific flows to a software defined network device connected to the cloud resource. The user-specific flows cause the software defined network device to grant access to the cloud resource to the user.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: September 24, 2019
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Thusitha Jayawardena, John Liefert, Christopher Van Wart
  • Publication number: 20190007431
    Abstract: An insider attack resistant system for providing cloud services integrity checking is disclosed. In particular, the system utilizes an automated integrity checking script and virtual machines to check the integrity of a service. The system may utilize the integrity checking script and virtual machines to execute a set of operations associated with the service so as to check the integrity of the service. When executing the set of operations, the system may only have access to the minimum level of access to peripherals that is required for each operation in the set of operations to be executed. After each operation is executed, the system may log each result for each operation, and analyze each result to determine if a failure exists for any of the operations. If a failure exists, the system may determine that a change in an expected system behavior associated with the service has occurred.
    Type: Application
    Filed: August 13, 2018
    Publication date: January 3, 2019
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
  • Patent number: 10079844
    Abstract: An insider attack resistant system for providing cloud services integrity checking is disclosed. In particular, the system utilizes an automated integrity checking script and virtual machines to check the integrity of a service. The system may utilize the integrity checking script and virtual machines to execute a set of operations associated with the service so as to check the integrity of the service. When executing the set of operations, the system may only have access to the minimum level of access to peripherals that is required for each operation in the set of operations to be executed. After each operation is executed, the system may log each result for each operation, and analyze each result to determine if a failure exists for any of the operations. If a failure exists, the system may determine that a change in an expected system behavior associated with the service has occurred.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: September 18, 2018
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
  • Publication number: 20180262467
    Abstract: Systems and methods provide mitigation for denial of service attacks against servers open to the Internet by preventing delivery of malicious traffic to servers using network gateways.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 13, 2018
    Inventors: Thusitha JAYAWARDENA, John LIEFERT, Christopher VAN WART
  • Publication number: 20180026987
    Abstract: A system for providing access control in a cloud includes a software defined network including a software defined network controller. The system is configured to authenticate user access using multi-factor authentication. If the user is authorized to access a cloud resource the software defined network controller sends instructions to insert layer 3 and 4 user-specific flows to a software defined network device connected to the cloud resource. The user-specific flows cause the software defined network device to grant access to the cloud resource to the user.
    Type: Application
    Filed: July 21, 2016
    Publication date: January 25, 2018
    Inventors: Thusitha Jayawardena, John Liefert, Christopher Van Wart
  • Publication number: 20170353479
    Abstract: An insider attack resistant system for providing cloud services integrity checking is disclosed. In particular, the system utilizes an automated integrity checking script and virtual machines to check the integrity of a service. The system may utilize the integrity checking script and virtual machines to execute a set of operations associated with the service so as to check the integrity of the service. When executing the set of operations, the system may only have access to the minimum level of access to peripherals that is required for each operation in the set of operations to be executed. After each operation is executed, the system may log each result for each operation, and analyze each result to determine if a failure exists for any of the operations. If a failure exists, the system may determine that a change in an expected system behavior associated with the service has occurred.
    Type: Application
    Filed: August 22, 2017
    Publication date: December 7, 2017
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
  • Patent number: 9787701
    Abstract: An insider attack resistant system for providing cloud services integrity checking is disclosed. In particular, the system utilizes an automated integrity checking script and virtual machines to check the integrity of a service. The system may utilize the integrity checking script and virtual machines to execute a set of operations associated with the service so as to check the integrity of the service. When executing the set of operations, the system may only have access to the minimum level of access to peripherals that is required for each operation in the set of operations to be executed. After each operation is executed, the system may log each result for each operation, and analyze each result to determine if a failure exists for any of the operations. If a failure exists, the system may determine that a change in an expected system behavior associated with the service has occurred.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: October 10, 2017
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
  • Publication number: 20170187732
    Abstract: An insider attack resistant system for providing cloud services integrity checking is disclosed. In particular, the system utilizes an automated integrity checking script and virtual machines to check the integrity of a service. The system may utilize the integrity checking script and virtual machines to execute a set of operations associated with the service so as to check the integrity of the service. When executing the set of operations, the system may only have access to the minimum level of access to peripherals that is required for each operation in the set of operations to be executed. After each operation is executed, the system may log each result for each operation, and analyze each result to determine if a failure exists for any of the operations. If a failure exists, the system may determine that a change in an expected system behavior associated with the service has occurred.
    Type: Application
    Filed: March 16, 2017
    Publication date: June 29, 2017
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
  • Patent number: 9606854
    Abstract: An insider attack resistant system for providing cloud services integrity checking is disclosed. In particular, the system utilizes an automated integrity checking script and virtual machines to check the integrity of a service. The system may utilize the integrity checking script and virtual machines to execute a set of operations associated with the service so as to check the integrity of the service. When executing the set of operations, the system may only have access to the minimum level of access to peripherals that is required for each operation in the set of operations to be executed. After each operation is executed, the system may log each result for each operation, and analyze each result to determine if a failure exists for any of the operations. If a failure exists, the system may determine that a change in an expected system behavior associated with the service has occurred.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: March 28, 2017
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
  • Publication number: 20170046211
    Abstract: An insider attack resistant system for providing cloud services integrity checking is disclosed. In particular, the system utilizes an automated integrity checking script and virtual machines to check the integrity of a service. The system may utilize the integrity checking script and virtual machines to execute a set of operations associated with the service so as to check the integrity of the service. When executing the set of operations, the system may only have access to the minimum level of access to peripherals that is required for each operation in the set of operations to be executed. After each operation is executed, the system may log each result for each operation, and analyze each result to determine if a failure exists for any of the operations. If a failure exists, the system may determine that a change in an expected system behavior associated with the service has occurred.
    Type: Application
    Filed: August 13, 2015
    Publication date: February 16, 2017
    Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart