EX-24 2 attachment1.htm EX-24 DOCUMENT

                                                                     Exhibit 24
                               POWER OF ATTORNEY

        The undersigned, as a Section 16 reporting person of Zscaler, Inc. (the
"Company"), hereby constitutes and appoints Remo Canessa, Robert Schlossman and
Torrie Nute, and each of them, as the undersigned's true and lawful attorney-in-
fact to:

        1.    prepare, execute in the undersigned's name and on the
              undersigned's behalf, and submit to the Securities and Exchange
              Commission (the "SEC") a Form ID, including amendments thereto,
              and any other documents necessary or appropriate to obtain EDGAR
              codes and passwords enabling the undersigned to make electronic
              filings with the SEC of reports required by Section 16(a) of the
              Securities Exchange Act of 1934 or any rule or regulation of the
              SEC;

        2.    complete and execute Forms 3, 4 and 5 and other forms and all
              amendments thereto as such attorney-in-fact shall in his
              discretion determine to be required or advisable pursuant to
              Section 16 of the Securities Exchange Act of 1934 (as amended) and
              the rules and regulations promulgated thereunder, or any successor
              laws and regulations, as a consequence of the undersigned's
              ownership, acquisition or disposition of securities of the
              Company; and

        3.    do all acts necessary in order to file such forms with the
              SEC, any securities exchange or national association, the Company
              and such other person or agency as the attorneys-in- fact shall
              deem appropriate.

        The undersigned hereby ratifies and confirms all that said attorneys-in-
fact and agents shall do or cause to be done by virtue hereof.  The undersigned
acknowledges that the foregoing attorneys-in-fact, in serving in such capacity
at the request of the undersigned, are not assuming, nor is the Company
assuming, any of the undersigned's responsibilities to comply with Section 16 of
the Securities Exchange Act of 1934 (as amended).

        This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to the
Company and the foregoing attorneys-in-fact.

        IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 28th day of February, 2018.


                                        Signature: /s/ Manoj Apte
                                                   -----------------------------

                                        Print Name: Manoj Apte
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