Andry, Johannes Fernandes
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REKONSTRUKSI DAN INVESTIGASI DIGITAL FORENSIK PADA APLIKASI WHATSAPP DENGAN METODE NIST : KASUS PELECEHAN SEKSUAL Ginting, Jusia Amanda; Setiawan, Harry; Andry, Johannes Fernandes; Ngurah Suryantara, I Gusti
Infotech: Journal of Technology Information Vol 10, No 1 (2024): JUNI
Publisher : STMIK WIDURI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37365/jti.v10i1.249

Abstract

The rapid advancement of technology, especially during the pandemic, has drastically changed the way we conduct activities, with the majority now being carried out online through smart devices such as smartphones. However, along with this progress comes new challenges in the form of cybercrime, increasingly known as cybercrime. Cybercrime on mobile platforms, known as mobile cybercrime, encompasses various activities such as fraud, spreading hoaxes, pornography, and sexual harassment. This research aims to examine the effectiveness of cybercrime investigation methods, particularly in cases of sexual harassment, with a focus on the WhatsApp platform. The method used is the National Institute of Standards Technology (NIST), implemented using appropriate tools to support this research. The testing process involves four main stages: data collection, examination, analysis, and reporting. This includes steps such as securing the device, acquiring data, and analyzing it using software such as FTK Imager and WhatsApp Viewer. The test results show that most deleted messages can be recovered, although messages deleted using the "unsent" feature cannot be recovered due to WhatsApp policy. Of the total 11 messages in the case conversation, 55% were successfully recovered while 45% were not. These findings highlight the importance of mobile forensic methods in investigating cybercrime, while also indicating that policies and platform features such as WhatsApp can affect the success of investigations. ABSTRAKPerkembangan teknologi yang pesat, terutama selama pandemi, telah mengubah cara kita beraktivitas secara drastis, dengan mayoritas kegiatan dilakukan secara online melalui perangkat pintar seperti smartphone. Namun, dengan kemajuan ini juga muncul tantangan baru dalam bentuk kejahatan cyber, yang semakin dikenal sebagai cybercrime. Cybercrime di platform mobile, dikenal sebagai mobile cybercrime, meliputi berbagai aktivitas seperti penipuan, penyebaran hoaks, pornografi, dan pelecehan seksual. Penelitian ini bertujuan untuk menguji efektivitas metode investigasi cybercrime, terutama dalam kasus pelecehan seksual, dengan fokus pada platform WhatsApp. Metode yang digunakan adalah National Institute of Standards Technology (NIST), yang diterapkan dengan menggunakan alat yang sesuai untuk mendukung penelitian ini. Proses pengujian melibatkan empat tahap utama: pengumpulan data, pemeriksaan, analisis, dan pelaporan. Ini melibatkan langkah-langkah seperti mengamankan perangkat, mengakuisisi data, dan menganalisis menggunakan perangkat lunak seperti FTK Imager dan WhatsApp Viewer. Hasil pengujian menunjukkan bahwa sebagian besar pesan yang dihapus dapat dipulihkan, meskipun pesan yang dihapus menggunakan fitur "unsent" gagal dipulihkan karena kebijakan WhatsApp. Dari total 11 pesan dalam percakapan kasus, 55% berhasil dipulihkan sementara 45% tidak berhasil. Temuan ini menyoroti pentingnya metode forensik mobile dalam menyelidiki kejahatan cyber, sementara juga menunjukkan bahwa kebijakan dan fitur-fitur platform seperti WhatsApp dapat mempengaruhi keberhasilan investigasi.
APLIKASI PRESENSI DAN PENGGAJIAN BERBASIS WEB (STUDI KASUS: CV. KARYA KOBA JAYA) Enirianti, Enirianti; Andry, Johannes Fernandes
Infotech: Journal of Technology Information Vol 8, No 2 (2022): NOVEMBER
Publisher : ISTEK WIDURI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37365/jti.v8i2.137

Abstract

Because many jobs exist, companies use information technology to help with office work. Employee attendance is related to the performance and discipline of employees in the company and is important for the company. CV. Karya Koba Jaya is a company engaged in the construction of buildings, bridges, roads, and irrigation. Problems that exist in the company are long attendance processes due to long lines, leave applications that must meet HRD directly and there is no record of leave information and slow payroll processes because they must be adjusted to attendance data and the long attendance data recapitulation process so that it hampers payroll process. This attendance application, leave application, and payroll can solve employee problems in absenteeism, leave application, and payroll. This web-based application for leave and payroll attendance requires PHP language and the waterfall model SDLC method with stages such as needs analysis, system design, implementation, testing, and maintenance to make a system as expected. The results of this study indicate that the attendance application for submitting leave and payroll based on this website can help employees in attendance, apply for leave, and payroll and can help the attendance recapitulation process can be fast so that the payroll process is not hampered. And the test results from the application that show attendance applications, leave applications, and website-based payroll are all functioning well without any problems or errors in the application so that it can be implemented in the organization. The conclusion of this study is that this website-based application for absenteeism and payroll applications can help overcome problems that exist in the company.