EPrints Repository UNTIRTAIMPLEMENTASI PENERAPAN SISTEM CAPTCHA UNTUK MENINGKATKAN KEAMANAN SISTEM LOGIN DI MEDIA SOSIAL BAGI PENGGUNA DISABILITASFikriAsshiddiqiauthorThe rapid growth of social media in the digital era has increased security risks in login systems due to automated attacks in the form of bots, which can lead to account misuse and data breaches. CAPTCHA is commonly used as an additional security mechanism to distinguish human users from automated programs; however, its effectiveness needs to be evaluated, particularly for users with non-visual disabilities. This study aims to analyze the improvement in security of a simulated social media login system after the implementation of CAPTCHA and to evaluate the effectiveness of Google reCAPTCHA, image-based CAPTCHA, and arithmetic CAPTCHA in preventing automated access. The research adopts an applied research approach using the Waterfall development model. Data were collected through simple bot testing, user questionnaires, and measurements of CAPTCHA completion time, which were analyzed using descriptive statistics. The results show that in the login system without CAPTCHA, all bot login attempts were successful, whereas after the implementation of CAPTCHA, all bot login attempts failed. In addition, most respondents were able to complete the CAPTCHA within a relatively short time. These findings indicate that the implementation of CAPTCHA enhances the security level of simulated social media login systems and can be used as an additional security mechanism.QA75 Electronic computers. Computer scienceT Technology (General)2026-04-09FAKULTAS TEKNIK UNIVERSITAS SULTAN AGENG TIRTAYASA;INFORMATIKAThesis

For work being deposited by its own author: In self-archiving this collection of files and associated bibliographic metadata, I grant EPrints Repository UNTIRTA the right to store them and to make them permanently available publicly for free on-line. I declare that this material is my own intellectual property and I understand that EPrints Repository UNTIRTA does not assume any responsibility if there is any breach of copyright in distributing these files or metadata. (All authors are urged to prominently assert their copyright on the title page of their work.)

For work being deposited by someone other than its author: I hereby declare that the collection of files and associated bibliographic metadata that I am archiving at EPrints Repository UNTIRTA) is in the public domain. If this is not the case, I accept full responsibility for any breach of copyright that distributing these files or metadata may entail.

Clicking on the deposit button indicates your agreement to these terms.