diff --git src/bp-core/admin/js/hello.js src/bp-core/admin/js/hello.js
index f6d59aef1..8324e6cc2 100644
--- src/bp-core/admin/js/hello.js
+++ src/bp-core/admin/js/hello.js
@@ -28,6 +28,23 @@
 						.removeClass( 'thickbox-loading' );
 
 		$( '#TB_ajaxContent' ).prop( 'style', 'height: 100%; width: auto; padding: 0; border: none;' );
+
+		var tabbables = $( ':tabbable', '#TB_ajaxContent' ), lastTabbable = tabbables.last();
+
+		// Move the focus to the Modal's close button once the last Hello link was tabbed out.
+		$( '#TB_window' ).on( 'keydown', function( event ) {
+			if ( 9 === event.keyCode && ! event.shiftKey && $( lastTabbable ).prop( 'classList' ).value === $( event.target ).prop( 'classList' ).value ) {
+				event.preventDefault();
+
+				$( '#TB_closeWindowButton' ).focus();
+			}
+
+			if ( 9 === event.keyCode && event.shiftKey && 'TB_closeWindowButton' === $( event.target ).prop( 'id' ) ) {
+				event.preventDefault();
+
+				$( lastTabbable ).focus();
+			}
+		} );
 	};
 
 	/**