# US 2014/0208418 A1 · Automatic protection of partial document content > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0208418 A1 - Document ID: US20140208418A1 - Status: Published application - Kind: A1 - Application number: 14/156,777 - Filed: 2014-01-16 - Published: 2014-07-24 - Earliest claimed: 2013-01-23 - Assignees: Evernote Corporation - Applicants: Evernote Corporation - Inventors: Phil Libin - Web page: https://patentgrep.com/patent/US20140208418A1 ## CPC - G06F 21/6209: {to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract Protecting a fragment of a document includes automatically detecting the fragment without user intervention based on the content of the fragment and/or the context of the fragment within a set of documents, selectively encrypting the fragment to prevent unauthorized access, and providing an alternative view of the fragment that prevents viewing and access of content corresponding to the fragment unless a decryption password is provided. Automatically detecting the fragment may include detecting numbers and alphanumeric sequences of sufficient length that do not represent commonly known abbreviations, detecting generic terms, detecting proper names, detecting terms signifying a type of content, detecting mutual location of terms and sensitive content, and/or detecting user defined terms. The generic terms may correspond to password, passcode, credentials, user name, account, ID, login, confidential, and/or sensitive. The proper names may be names of financial organizations and security organizations. ## Claims ### Claim 1 A method of protecting a fragment of a document, comprising: automatically detecting the fragment without user intervention based on at least one of: the content of the fragment and the context of the fragment within a set of documents; selectively encrypting the fragment to prevent unauthorized access; and providing an alternative view of the fragment that prevents viewing and access of content corresponding to the fragment unless a decryption password is provided. ### Claim 2 (depends on 1) A method, according to claim 1, wherein automatically detecting the fragment includes at least one of: detecting numbers and alphanumeric sequences of sufficient length that do not represent commonly known abbreviations, detecting generic terms, detecting proper names, detecting terms signifying a type of content, detecting mutual location of terms and sensitive content, and detecting user defined terms. ### Claim 3 (depends on 2) A method, according to claim 2, wherein the generic terms correspond to at least one of: password, passcode, credentials, user name, account, ID, login, confidential, and sensitive. ### Claim 4 (depends on 2) A method, according to claim 2, wherein the proper names are names of financial organizations and security organizations. ### Claim 5 (depends on 2) A method, according to claim 2, wherein terms signifying a type of content correspond to at least one of: formula, figure, and chart. ### Claim 6 (depends on 5) A method, according to claim 5, wherein, in response to a term indicating an image, the image following the term is detected. ### Claim 7 (depends on 1) A method, according to claim 1, wherein selectively encrypting includes deciding whether to encrypt at least a portion of the fragment. ### Claim 8 (depends on 7) A method, according to claim 7, wherein selectively encrypting includes encrypting content in addition to the fragment. ### Claim 9 (depends on 1) A method, according to claim 1, wherein providing alternative views includes providing an obfuscated view of the fragment that retains an original size and shape of the fragment. ### Claim 10 (depends on 9) A method, according to claim 9, wherein the obfuscated view is at least one of: blurred, pixelated, filled with a solid color, filled with a regular geometric pattern, and filled with an irregular geometric pattern. ### Claim 11 (depends on 1) A method, according to claim 1, wherein providing alternative views includes providing a collapsed view of the fragment that replaces content corresponding to the fragment with one or more characters. ### Claim 12 (depends on 1) A method, according to claim 1, wherein providing alternative views includes providing a hidden view of the fragment wherein the fragment is removed from a corresponding document. ### Claim 13 (depends on 1) A method, according to claim 1, wherein the documents are notes in content management system. ### Claim 14 (depends on 13) A method, according to claim 13, wherein the content management system is cloud based and shares content across different devices of a user. ### Claim 15 (depends on 13) A method, according to claim 13, wherein the content management system is OneNote® note-taking software provided by the Microsoft Corporation of Redmond, Wash. ### Claim 16 (depends on 1) A method, according to claim 1, wherein the alternative views are provided on a mobile device. ### Claim 17 (depends on 16) A method, according to claim 16, wherein the mobile device is a tablet using an operating system selected from the group consisting of: iOS, Android OS, Windows Phone OS, Blackberry OS and mobile versions of Linux OS. ### Claim 18 Computer software, provided in a non-transitory computer-readable medium, that protects a fragment of a document, the software comprising: executable code that automatically detects the fragment without user intervention based on at least one of: the content of the fragment and the context of the fragment within a set of documents; executable code that selectively encrypts the fragment to prevent unauthorized access; and executable code that provides an alternative view of the fragment that prevents viewing and access of content corresponding to the fragment unless a decryption password is provided. ### Claim 19 (depends on 18) Computer software, according to claim 18, wherein executable code that automatically detects the fragment detects at least one of: numbers and alphanumeric sequences of sufficient length that do not represent commonly known abbreviations, generic terms, proper names, terms signifying a type of content, mutual location of terms and sensitive content, and user defined terms. ### Claim 20 (depends on 19) Computer software, according to claim 19, wherein the generic terms correspond to at least one of: password, passcode, credentials, user name, account, ID, login, confidential, and sensitive. ### Claim 21 (depends on 19) Computer software, according to claim 19, wherein the proper names are names of financial organizations and security organizations. ### Claim 22 (depends on 19) Computer software, according to claim 19, wherein terms signifying a type of content correspond to at least one of: formula, figure, and chart. ### Claim 23 (depends on 22) Computer software, according to claim 22, wherein, in response to a term indicating an image, the image following the term is detected. ### Claim 24 (depends on 18) Computer software, according to claim 18, wherein executable code that selectively encrypts includes executable code that allows a user to decide whether to encrypt at least a portion of the fragment. ### Claim 25 (depends on 24) Computer software, according to claim 24, wherein executable code that selectively encrypts includes executable code that allows a user to encrypt content in addition to the fragment. ### Claim 26 (depends on 18) Computer software, according to claim 18, wherein executable code that provides alternative views provides an obfuscated view of the fragment that retains an original size and shape of the fragment. ### Claim 27 (depends on 26) Computer software, according to claim 26, wherein the obfuscated view is at least one of: blurred, pixelated, filled with a solid color, filled with a regular geometric pattern, and filled with an irregular geometric pattern. ### Claim 28 (depends on 18) Computer software, according to claim 18, wherein executable code that provides alternative views providing a collapsed view of the fragment that replaces content corresponding to the fragment with one or more characters. ### Claim 29 (depends on 18) Computer software, according to claim 18, wherein executable code that provides alternative views provides a hidden view of the fragment wherein the fragment is removed from a corresponding document. ### Claim 30 (depends on 18) Computer software, according to claim 18, wherein the documents are notes in content management system. ### Claim 31 (depends on 30) Computer software, according to claim 30, wherein the content management system is cloud based and shares content across different devices of a user. ### Claim 32 (depends on 30) Computer software, according to claim 30, wherein the content management system is OneNote® note-taking software provided by the Microsoft Corporation of Redmond, Wash. ### Claim 33 (depends on 18) Computer software, according to claim 18, wherein the alternative views are provided on a mobile device. ### Claim 34 (depends on 33) Computer software, according to claim 33, wherein the mobile device is a tablet using an operating system selected from the group consisting of: iOS, Android OS, Windows Phone OS, Blackberry OS and mobile versions of Linux OS.