Masking private content on a device display based on contextual data

A computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a user device to cause the user device to:

• identify private portions and non-private portions of content displayed on the user device;
• generate instructions to modify the display of the content on the user device to mask the private portions of the content, group the private portions of the content together, and group and the non-private portions of the content together;
• and
• execute the instructions to cause the user device to modify the display of the content on the user device such that the masked private portions of the content are grouped together and the non-private portions of the content are grouped together, wherein the non-private portions are exposed and visible,
• wherein the identifying the private portions comprises receiving manual input by the user, via the user interface of the user device, the manual input being a boundary drawn around and defining the private portions of the content.

A system comprising:

• a processor, a computer readable memory and a computer readable storage medium associated with a computing device;
• program instructions to automatically identify private text messages and non-private text messages, of a plurality of text messages, displayed on a user device, wherein the automatically identifying the private text messages and non-private text messages is based on a contextual analysis of contextual information associated with the plurality of text messages;
• program instructions to present via the user device suggestions to mask the identified private text messages;
• program instructions to receive user input identifying a first subset of the plurality of text messages to mask and a second subset of the plurality of text messages to remain unmasked;
• program instructions to generate instructions to modify the display of the plurality of text messages on the user device to mask the first subset of the plurality of text messages, group the masked first subset of the plurality of text messages together, and group and the unmasked second subset of the plurality of text messages together;
• and
• output the instructions to cause the user device to modify the display of the content on the user device such that the masked first subset of the plurality of text messages are grouped together and the unmasked second subset of the plurality of text messages are grouped together,
• wherein the program instructions are stored on the computer readable storage medium for execution by the processor via the computer readable memory.