
CUSIP No. 45323j103		13G		Page 6 of 8

EXHIBIT 1

JOINT FILING AGREEMENT

Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, the undersigned hereby agree that only one statement containing the information required by Schedule 13G need be filed with respect to the ownership by each of the undersigned of shares of Imprivata, Inc.

EXECUTED this 13^th day of February, 2017


GENERAL CATALYST GROUP II, L.P.

By:	GENERAL CATALYST PARTNERS II, L.P.
	its General Partner

	By:	GENERAL CATALYST GP II, LLC
		its General Partner

		By:	/s/ Christopher McCain
			Christopher McCain
			Chief Legal Officer

GC ENTREPRENEURS FUND II, L.P.

By:	GENERAL CATALYST PARTNERS II, L.P.
	its General Partner

	By:	GENERAL CATALYST GP II, LLC
		its General Partner

		By:	/s/ Christopher McCain
			Christopher McCain
			Chief Legal Officer

GENERAL CATALYST PARTNERS II, L.P.

By:	GENERAL CATALYST GP II, LLC
	its General Partner

		By:	/s/ Christopher McCain
			Christopher McCain
			Chief Legal Officer


CUSIP No. 45323j103		13G		Page 7 of 8


GENERAL CATALYST GP II, LLC

By:		/s/ Christopher McCain
		Christopher McCain
		Chief Legal Officer

By:		*
		Joel E. Cutler

By:		*
		David P. Fialkow


*By:		/s/ Christopher McCain
		Christopher McCain
		As attorney-in-fact

This Agreement was executed by Christopher McCain on behalf of the individuals listed above pursuant to a Power of Attorney, a copy of which is attached as Exhibit 2.

Imprivata Inc SC 13G/A