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).
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Publication number: 20230179570Abstract: 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: ApplicationFiled: December 6, 2021Publication date: June 8, 2023Inventors: Steven Adams, Maureen Langevin, Christine Murphy, Toby Avino, John Liefert, William O'Hern, Daniel Sheleheda, Jayaraman Ramachandran
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Patent number: 11570185Abstract: 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: GrantFiled: October 21, 2019Date of Patent: January 31, 2023Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
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Publication number: 20200053107Abstract: 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: ApplicationFiled: October 21, 2019Publication date: February 13, 2020Applicant: AT&T Intellectual Property I, L.P.Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
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Patent number: 10454956Abstract: 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: GrantFiled: August 13, 2018Date of Patent: October 22, 2019Assignee: AT&T Intellectual Property I, L.P.Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
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Patent number: 10425419Abstract: 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: GrantFiled: July 21, 2016Date of Patent: September 24, 2019Assignee: AT&T Intellectual Property I, L.P.Inventors: Thusitha Jayawardena, John Liefert, Christopher Van Wart
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Publication number: 20190007431Abstract: 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: ApplicationFiled: August 13, 2018Publication date: January 3, 2019Applicant: AT&T Intellectual Property I, L.P.Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
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Patent number: 10079844Abstract: 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: GrantFiled: August 22, 2017Date of Patent: September 18, 2018Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
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Publication number: 20180262467Abstract: 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: ApplicationFiled: March 8, 2017Publication date: September 13, 2018Inventors: Thusitha JAYAWARDENA, John LIEFERT, Christopher VAN WART
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Publication number: 20180026987Abstract: 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: ApplicationFiled: July 21, 2016Publication date: January 25, 2018Inventors: Thusitha Jayawardena, John Liefert, Christopher Van Wart
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Publication number: 20170353479Abstract: 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: ApplicationFiled: August 22, 2017Publication date: December 7, 2017Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
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Patent number: 9787701Abstract: 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: GrantFiled: March 16, 2017Date of Patent: October 10, 2017Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
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Publication number: 20170187732Abstract: 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: ApplicationFiled: March 16, 2017Publication date: June 29, 2017Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
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Patent number: 9606854Abstract: 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: GrantFiled: August 13, 2015Date of Patent: March 28, 2017Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart
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Publication number: 20170046211Abstract: 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: ApplicationFiled: August 13, 2015Publication date: February 16, 2017Inventors: Thusitha Jayawardena, Jeffrey E. Bickford, Mikhail Istomin, John Liefert, Gokul Singaraju, Christopher Van Wart