1. A method for authenticating an alarm, comprising: receiving from an alarm sensor at a monitored premise an alarm signal associated with an event at the monitored premise; receiving video data of the monitored premise from a video source associated with the alarm sensor; conducting video analytics on the video data to detect the event in a segment of interest of the video data; identifying an event type associated with the event; selecting a level of encoding for the segment of interest of the video data based at least in part on the event type being associated with a profile; encoding the segment of interest based on the level of encoding to produce encoded video data having a bit rate different than a bit rate of the video data; selecting a level of encoding for a portion of the video data different from the segment of interest, the level of encoding for the segment of interest being different from the level of encoding for the portion of the video data; and sending a representation of the encoded video data to at least one recipient.