You followed a link on oculus.com that redirects to another website:
https://www.google.com/url?q=https%3A%2F%2Fvrjam-submissions.s3.amazonaws.com%2Fsigned%2F4354d40dfc9b%2FgMnG2ZWEQwGx4zeg9QKp_DMZ_Final3_SansOsig2.apk&sa=D&sntz=1&usg=AFQjCNHnlZZ5RBiF-WgIlfa4AEjX4OzApwWe're just checking that you want to follow this link — you can now continue to that website or go back to the home page.