WordPress plugin modification alerts – Twitter-api

I am using WordPress and have Wordfence (free) watching over my site to make sure people aren’t doing anything they shouldn’t be doing. I recently got an email from Wordfence warning me about modified plugin files and I’m wondering if this is something I should be worried about? I don’t think I’ve ever received an email before just doing my normal plugin updates. Would updates have triggered this? Or is it more?

WordPress versions and such:

-WordPress 4.4.2
-Headway Theme v. 3.8.8
-Wordfence (free) v. 6.0.24
-Google Captcha (reCAPTCHA) by BestWebSoft v. 1.22 (this is on the login page, so it should help block automated attacks...)
-My username is not a generic 'admin' or anything like that, and I have WordFence set to immediately lock out any invalid username login attempts.
-and my password is decently strong.
-I do have other various plugins that are up to date, I just mention the above because they are supposed to help with security.

The Message I received was:

Alert generated at Thursday 25th of February 2016 at 11:41:32 PM

Warnings:

* Modified plugin file: wp-content/plugins/google-captcha/bws_menu/bws_functions.php

* Modified plugin file: wp-content/plugins/google-captcha/bws_menu/bws_menu.php

* Modified plugin file: wp-content/plugins/google-captcha/bws_menu/css/general_style.css

* Modified plugin file: wp-content/plugins/google-captcha/css/gglcptch.css

* Modified plugin file: wp-content/plugins/google-captcha/google-captcha.php

* Modified plugin file: wp-content/plugins/google-captcha/js/script.js

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-ar.mo

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-ar.po

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-bg_BG.mo

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-bg_BG.po

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-de_DE.mo

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-de_DE.po

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-el.mo

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-el.po

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-es_ES.mo

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-es_ES.po

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-fa_IR.mo

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-fa_IR.po

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-fr_FR.mo

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-fr_FR.po

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-hi.mo

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-hi.po

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-it_IT.mo

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-it_IT.po

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-pl_PL.mo

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-pl_PL.po

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-pt_BR.mo

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-pt_BR.po

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-ru_RU.mo

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-ru_RU.po

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-uk.mo

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-uk.po

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-zh_TW.mo

* Modified plugin file: wp-content/plugins/google-captcha/languages/google-captcha-zh_TW.po

* Modified plugin file: wp-content/plugins/google-captcha/readme.txt

* Modified plugin file: wp-content/plugins/google-captcha/screenshot-5.png

* Modified plugin file: wp-content/plugins/google-captcha/screenshot-6.png

* Modified plugin file: wp-content/plugins/google-captcha/screenshot-7.png

* Modified plugin file: wp-content/plugins/google-captcha/screenshot-8.png

* Modified plugin file: wp-content/plugins/jetpack/_inc/jetpack-jitm.js

* Modified plugin file: wp-content/plugins/jetpack/_inc/lib/admin-pages/class.jetpack-landing-page.php

* Modified plugin file: wp-content/plugins/jetpack/_inc/lib/markdown/gfm.php

* Modified plugin file: wp-content/plugins/jetpack/class.jetpack-modules-list-table.php

* Modified plugin file: wp-content/plugins/jetpack/class.jetpack-network.php

* Modified plugin file: wp-content/plugins/jetpack/class.jetpack.php

* Modified plugin file: wp-content/plugins/jetpack/class.json-api-endpoints.php

* Modified plugin file: wp-content/plugins/jetpack/class.json-api.php

* Modified plugin file: wp-content/plugins/jetpack/class.photon.php

* Modified plugin file: wp-content/plugins/jetpack/css/jetpack-admin.css.map

* Modified plugin file: wp-content/plugins/jetpack/functions.opengraph.php

* Modified plugin file: wp-content/plugins/jetpack/functions.photon.php

* Modified plugin file: wp-content/plugins/jetpack/jetpack.php

* Modified plugin file: wp-content/plugins/jetpack/json-endpoints/class.wpcom-json-api-delete-media-endpoint.php

* Modified plugin file: wp-content/plugins/jetpack/json-endpoints/class.wpcom-json-api-delete-media-v1-1-endpoint.php

* Modified plugin file: wp-content/plugins/jetpack/json-endpoints/class.wpcom-json-api-get-site-endpoint.php

* Modified plugin file: wp-content/plugins/jetpack/json-endpoints/class.wpcom-json-api-post-endpoint.php

* Modified plugin file: wp-content/plugins/jetpack/json-endpoints/class.wpcom-json-api-post-v1-1-endpoint.php

* Modified plugin file: wp-content/plugins/jetpack/json-endpoints/class.wpcom-json-api-sharing-buttons-endpoint.php

* Modified plugin file: wp-content/plugins/jetpack/json-endpoints/class.wpcom-json-api-update-post-endpoint.php

* Modified plugin file: wp-content/plugins/jetpack/json-endpoints/class.wpcom-json-api-update-post-v1-1-endpoint.php

* Modified plugin file: wp-content/plugins/jetpack/json-endpoints/class.wpcom-json-api-update-post-v1-2-endpoint.php

* Modified plugin file: wp-content/plugins/jetpack/json-endpoints.php

* Modified plugin file: wp-content/plugins/jetpack/locales.php

* Modified plugin file: wp-content/plugins/jetpack/modules/contact-form/grunion-contact-form.php

* Modified plugin file: wp-content/plugins/jetpack/modules/custom-post-types/comics.php

* Modified plugin file: wp-content/plugins/jetpack/modules/custom-post-types/js/many-items.js

* Modified plugin file: wp-content/plugins/jetpack/modules/custom-post-types/portfolios.php

* Modified plugin file: wp-content/plugins/jetpack/modules/custom-post-types/testimonial.php

* Modified plugin file: wp-content/plugins/jetpack/modules/latex.php

* Modified plugin file: wp-content/plugins/jetpack/modules/minileven.php

* Modified plugin file: wp-content/plugins/jetpack/modules/module-headings.php

* Modified plugin file: wp-content/plugins/jetpack/modules/module-info.php

* Modified plugin file: wp-content/plugins/jetpack/modules/publicize/ui.php

* Modified plugin file: wp-content/plugins/jetpack/modules/related-posts/jetpack-related-posts.php

* Modified plugin file: wp-content/plugins/jetpack/modules/related-posts/related-posts.js

* Modified plugin file: wp-content/plugins/jetpack/modules/shortcodes/archives.php

* Modified plugin file: wp-content/plugins/jetpack/modules/shortcodes/flickr.php

* Modified plugin file: wp-content/plugins/jetpack/modules/shortcodes/instagram.php

* Modified plugin file: wp-content/plugins/jetpack/modules/shortcodes/presentations.php

* Modified plugin file: wp-content/plugins/jetpack/modules/shortcodes/scribd.php

* Modified plugin file: wp-content/plugins/jetpack/modules/shortcodes/slideshare.php

* Modified plugin file: wp-content/plugins/jetpack/modules/shortcodes/soundcloud.php

* Modified plugin file: wp-content/plugins/jetpack/modules/shortcodes/ted.php

* Modified plugin file: wp-content/plugins/jetpack/modules/shortcodes/twitter-timeline.php

* Modified plugin file: wp-content/plugins/jetpack/modules/shortcodes/vimeo.php

* Modified plugin file: wp-content/plugins/jetpack/modules/shortcodes/wufoo.php

* Modified plugin file: wp-content/plugins/jetpack/modules/stats.php

* Modified plugin file: wp-content/plugins/jetpack/modules/theme-tools/random-redirect.php

* Modified plugin file: wp-content/plugins/jetpack/modules/theme-tools/site-logo/js/site-logo-control.js

* Modified plugin file: wp-content/plugins/jetpack/modules/videopress/videopress.php

* Modified plugin file: wp-content/plugins/jetpack/modules/widget-visibility/widget-conditions/widget-conditions.js

* Modified plugin file: wp-content/plugins/jetpack/modules/widget-visibility/widget-conditions.php

* Modified plugin file: wp-content/plugins/jetpack/modules/widgets/contact-info.php

* Modified plugin file: wp-content/plugins/jetpack/modules/widgets/top-posts.php

* Modified plugin file: wp-content/plugins/jetpack/modules/widgets/wordpress-post-widget.php

* Modified plugin file: wp-content/plugins/jetpack/readme.txt

* Modified plugin file: wp-content/plugins/jetpack/views/admin/my-jetpack-page.php

* Modified plugin file: wp-content/plugins/youtube-channel/readme.txt

Is there anywhere I can check to see what or why they were modified? Or what IP made the changes or anything like that? I am the only one with access to the site, as in I don’t have any friends or family members or co-workers that can also make changes.