Abstract: Embodiments are disclosed that allow encrypted data to be sent between a Bluetooth enabled device and a virtual device associated with a corresponding physical device. In particular, a Bluetooth implementation on the physical device may include one or more raw interfaces to facilitate endpoint to endpoint secure Bluetooth cryptography. Using these raw interfaces, an encrypted Bluetooth channel may be established directly between the virtual device and the Bluetooth enabled device using the radio of the physical device, where data may be encrypted and decrypted at an endpoint of the Bluetooth communication channel (such as at the virtual device or the Bluetooth enabled device) and passed through a Bluetooth implementation on the physical device without any additional encryption or decryption being performed on that data.

Abstract: The present disclosure provides a cross-blockchain data access method, apparatus and system, and a computer readable medium. The method comprises: sending an authorizing blockchain apparatus a block data request carrying a requesting blockchain apparatus identifier and authorization information, so that the authorizing blockchain apparatus verifies whether the authorization information corresponding to locally-stored requesting blockchain apparatus identifier is matched with the authorization information in the block data request; receiving block data sent by the authorizing blockchain apparatus and corresponding to the block data request, the block data being sent after the authorizing blockchain apparatus verifies that the authorization information corresponding to locally-stored requesting blockchain apparatus identifier is matched with the authorization information in the block data request.

Abstract: A method of enabling enhanced security analysis for quarantined email messages, comprises receiving, at an email gateway an inbound email message from an external network, determining whether the email message is to be quarantined, restructuring the email message, if the message is to be quarantined, as an attachment for a new email, constructing a new email message addressed to a secure repository on a secure pathway, attaching the restructured email message to the new email message and releasing the new email message that includes the restructured email message as an attachment. Threat analysis is performed by one or more security services in the secure pathway. Suspicious emails and analysis results are stored in the secure repository.

Abstract: Systems are provided for utilizing crowdsourcing and machine learning to improve computer system security processes associated with user risk profiles and sign-in profiles. Risk profiles of known users and logged sign-ins are confirmed by user input as either safe or compromised. This input is used as crowdsourced feedback to generate label data for training/refining machine learning algorithms used to generate corresponding risky profile reports. The risky profile reports are used to provide updated assessments and initial assessments of known users and logged sign-ins, as well as newly discovered users and new sign-in attempts, respectively. These assessments are further confirmed or modified to further update the machine learning and risky profile reports.

Abstract: An example method comprising detecting that an unidentified client device joins a network, retrieving information related to a device property of the unidentified client device from network traffic to and/or from the unidentified client device, sending a query based on the information to a fingerprinting server, and receiving the device property of the unidentified client device in response to the query.

Abstract: Methods and systems are provided for generating a security profile for a new computing system. One example method generally includes obtaining, over a network, information associated with a plurality of existing computing systems and generating, by a clustering algorithm, a set of clusters based on the information associated with the plurality of existing computing systems. The method further includes obtaining external data associated with the computing system and classifying the computing system into a cluster in the set of clusters based on the external data associated with the computing system. The method further includes determining the security profile based on statistics associated with the cluster and transmitting, over the network, an indication of the security profile.

Abstract: Disclosed herein are methods, systems, and processes to provide layered encryption to facilitate end to end communication. A user input is displayed in a user interface of an input device. A public/private key pair is determined based on a random number, a provisioned seed, or a physical unclonable function (PUF) provided by the input device. A previous public/private key pair is stored in a storage device associated with the input device using a recipient public key as an index. The user input is encrypted with the recipient pubic key. The derived public key is sent as a header followed by the encrypted user input to a host computing device.