Mimecast Services Ltd.

Mimecast North America, Inc.

Simon Paul Tyler

Jackie Anne Maylor

Nathaniel S Borenstein

Steven Malone

Wayne Van Ry

Francisco Ribeiro

Paul Sowden

Lee Haworth

Meni Farjon

Neil Hamilton Murray

Mark O'Hare

Peter Bauer

Gilly Benamram

Florian P Buetow

Chris Bamford

Reinhard Uebel

Carlos Da Silva

Kevin Slote

Herbert L Roitblat

The present disclosure relates generally to computer security, and, more particularly, to systems and methods for assisting a user in avoiding the accidental disclosure of confidential or sensitive information, as well as avoiding potential security breaches, including phishing and impersonation, malware, and security issues, particularly with respect to websites and electronic communications.

Systems and methods for threat detection and warning

The invention is a security system providing domain name authentication for intrusion and malware prevention. The system is configured to analyze domain names, specifically analyze network metadata associated with said domain names, and further identify domain names attempting to impersonate or spoof domain names associated with a trusted entity or party.

Systems and methods for detecting domain impersonation

In various exemplary embodiments, a security continuity system allows users to continue accessing certain user accounts (e.g., email, calendar, contacts, documents, instant messaging, cloud storage, etc.) through alternate logon identity credentials that are automatically provisioned such as when a security event is detected or suspected. The alternate logon identity credentials may be temporary (e.g., just used during security continuity until the original user logon identity credentials can be secured such as by establishing a new password or by having the user select a new logon identity) or permanent (e.g., the alternate logon identity can become the user's new logon identity). Security continuity may be invoked manually (e.g., by the user or by an administrator) or automatically when certain conditions are detected (e.g., through detection of suspicious activities such as repeated user lockouts due to multiple failed logon attempts or upon detection of a successful breach by an attacker).

Security continuity systems and methods

The invention is related to security systems and methods for proactively informing a user about an artifact associated with a clickable object on a user interface with which the user is interacting, where such information is provided to the user prior to selection of the clickable object. The information includes a safety assessment of the clickable object, details about the underlying artifact, such as the contents of an archive file, and general information helpful in assisting the user with making a decision as to whether to select the clickable object.

Systems and methods for proactive analysis of artifacts associated with information resources

Among other things, we describe techniques for encoding data that is included in electronic communications. In one aspect, a first electronic communication system sends, to an entity, a first email message that includes a Message-ID field including data that identifies an action to be carried out by a second electronic communication system. The first electronic communication system receives, from the entity, a second email message that includes an In-Reply-To field containing the data that identifies the action to be carried out by the second electronic communication system. The first electronic communication extracts the data from the In-Reply-To field in a message header of the first electronic communication. The second electronic communication system may be the same as the first electronic communication system, or may be an electronic communication system other than the first electronic communication system.

Encoding data in email headers

Among other things, we describe techniques for carrying encoded data in a header field of an email message wherein the encoded data is homomorphically encrypted such that the encoded data is only interpretable by one or more authorized recipients and operable by any recipient. A recipient of such an email message (which may be the sender or another recipient) can derive an action to be carried out from the homomorphically-encrypted encoded data.

Homomorphically encrypted data in email headers

Systems and methods for attacks, countermeasures, archiving, data leak prevention, and other novel services relating to active messages are disclosed. Among other things, a system can replace active content with static content in a message, can replace static content with active content in a message, and can use active messaging to provide enhanced on-hold message functions.

Systems and methods for attacks, countermeasures, archiving, data leak prevention, and other novel services for active messages

The present disclosure relates generally to the field of data processing and electronic messaging systems, and, more particularly, to systems and methods for mediating a user's access to a resource to thereby prevent potential security breaches, including phishing and impersonation, malware, and security issues, particularly with respect to websites and electronic communications.

Systems and methods for mediating access to resources

Virtually every online account requires login credentials like username and password for access. Using different credentials for each account can reduce the likelihood of unauthorized access to these accounts. Remembering all the different credentials, however, can be a challenge and it is not uncommon for a user to mistakenly provide credentials to a site that are for another, sensitive site. Accordingly, a system for warning a user of such an error is provided. The system includes a browser plugin that responds to a user entering their credentials at a requesting site by looking up an identifier of a trusted site associated with the user's credentials. The identifiers of the requesting and trusted sites are compared, and if they do not match, the browser plugin blocks the user from submitting their credentials to the requesting site. Advantageously, the system reduces the likelihood that credentials to sensitive accounts are provided by accident.

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Wiltshire, United Kingdom

Simon Paul Tyler