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Tangerang City has the most applications in Indonesia, with 222 applications. All of these applications are supported by more than 100 servers located in the data center of the Tangerang City Communication and Information Agency. The large number of servers and applications that are managed brings up new problems in the midst of increasing complex cyber threats, especially in government data centers. One of them is how to monitor and respond quickly when there is an attack on the existing system. The implementation of a cyber security system based on Wazuh, Shuffle, and YARA is able to monitor threats in realtime and automate responses against attacks. Wazuh acts as a log-based monitoring and detection platform and behavior analysis, Shuffle is used to automate incident response through integrated workflow, and YARA is applied for signature-based malware identification. The PPDIOO (Prepare, Plan, Design, Implement, Operate, Optimize) method used in this research is used as a framework in designing and evaluating the system. From the research conducted, it is expected that Wazuh successfully monitors anomalies that occur on the server which will then be forwarded to Shuffle to automate the next steps to be taken. YARA integrated with Wazuh also successfully detects and quarantines malicious files that enter the server automatically based on the available signature list.

While TLS 1.3 is the latest standard, TLS 1.2 remains widely implemented in many cloud infrastructures. The selection of cipher suites in TLS 1.2, particularly between AES-128-GCM and AES-256-GCM, presents a trade-off between cryptographic strength and system performance. This research aims to analyze the performance comparison of these two algorithms on an Nginx server to determine the optimal configuration for cloud storage services. The study uses a quantitative experimental method by benchmarking two scenarios: (A) Strict (AES-256-GCM), and (B) Balanced (AES-128-GCM). Performance metrics measured include Requests Per Second (RPS), Latency, and Throughput. The results show that handshake performance (RPS and Latency) is nearly identical across all scenarios. However, in large file transfer tests, the AES-128-GCM algorithm (Scenario B) achieved a throughput of 32.4 MB/s, which is 12.5% faster than AES-256-GCM (28.8 MB/s). This study concludes that AES-128-GCM provides the best balance of security and efficiency for data-intensive environments.

The advancement of information technology has encouraged organizations to transform their data management practices, including those within the electrical power sector. PT PLN (Persero) UP3 Lubuk Pakam previously utilized Google Sheets to store and manage electrical energy loss data. However, this approach posed data security risks, as the files could be accessed and modified by unauthorized individuals. To overcome these limitations, this study developed a web-based information system specifically designed for the Electricity Energy Transaction Division (TEL) to replace Google Sheets as a platform for managing energy loss data. The proposed web application integrates a Role-Based Access Control (RBAC) mechanism, ensuring that only administrators are authorized to input, edit, or delete data, while other users can only view validated records. Furthermore, the system incorporates interactive data visualization through real-time charts, facilitating effective monitoring and analysis of electrical energy losses. The implementation of this system is expected to enhance data security, accuracy, and management efficiency within the TEL Division of PT PLN UP3 Lubuk Pakam.  

Power transformer theft, a pervasive issue disrupting critical infrastructure, necessitates the development of cost-effective and energy-autonomous security solutions. This paper presents the design and implementation of a detection-focused anti-theft framework that integrates a Raspberry Pi Zero W, camera module, and passive infrared (PIR) motion sensors powered by a solar system for continuous monitoring. The system is designed for remote, off-grid deployment, utilizing a headless Raspberry Pi powered by a 5V solar panel and power bank to ensure energy autonomy. Upon motion detection, captured images are processed on the edge device using OpenCV’s Haar Cascade classifier, optimized for upper-body detection to minimize false positives and verify human presence. Captured images are processed locally on the edge device using OpenCV’s Haar Cascade classifier to confirm human presence before an alert is sent to the mobile application, emphasizing real-time operation and low latency. Once an intrusion is confirmed, the images are saved locally and uploaded via the Secure File Transfer Protocol to a custom-developed Android application. The app provides a dedicated remote monitoring interface, enabling secure file transfer and system access, while providing users with immediate notifications and image management capabilities. The system emphasizes low power consumption, real-time operation, and low deployment cost. Tests over 200 triggered events under varied environmental conditions achieved 90% detection accuracy with an average latency of 4.5 s. Solar autonomy was maintained for approximately 24 h under normal operation. It is concluded that the integration of solar power, edge computing of images, and mobile monitoring provides a feasible, scalable, and financially viable framework for securing transformers, especially in resource-constrained environments.

MP3 audio files are often used in a variety of fields, but they are prone to security risks such as eavesdropping and illegal access. This study proposes a super encryption method by combining the algorithms of Rivest Shamir Adleman (RSA) and ElGamal to improve the protection of audio data. RSA was chosen for its efficiency and ease of implementation, while ElGamal offers a high level of security through discrete logarithmic complexity. The combination of the two is expected to address the weaknesses of each algorithm and strengthen file security. The system is developed using the Python programming language with the Visual Studio Code environment. The encryption process is done in layers: MP3 files are first encrypted with RSA, and then the results are encrypted again with ElGamal. The decryption is done in reverse order. Tests are conducted with various MP3 file sizes to measure the effectiveness and performance of the system. The results show that this method is able to secure audio files so that they cannot be accessed without the private keys of both algorithms. Although processing times are increased compared to single encryption, the level of security obtained is much higher. This approach can be an effective solution for protecting digital audio data, particularly MP3 format, and could potentially be applied to a wide range of other data types that require a high level of security.

This study discusses legal protection for customer data security in internet banking systems in Indonesia, especially after the enactment of various related laws and regulations. The purpose of this study is to analyze how legal protection is applied and the legal measures that can be taken by customers if their data is not protected. The research method used is normative legal research with a qualitative approach, through data collection from secondary sources such as laws, legal literature, and official documents. The final findings show that although legal protection has improved with the existence of relevant laws, there are still challenges in its implementation. Customers have the right to file complaints and legal claims in the event of a data breach, which includes complaint procedures with banks and the Financial Services Authority. Compliance with regulations and the principles of legal justice are essential to maintaining public trust in the banking sector.

STMIK Pesat Nabire is a private university in Papua Tengah that uses a web-based academic information system called eCampuz. User satisfaction evaluation plays a crucial role in improving the quality of academic services at an institution. The purpose of this study is to determine the extent of user satisfaction with eCampuz at STMIK Pesat Nabire, identify the factors influencing such satisfaction, and pinpoint the aspects of eCampuz that need to be improved and developed to enhance user satisfaction. This study employs a mixed-methods approach with an explanatory sequential design. The results indicate that the majority of users are satisfied with five key aspects of eCampuz, 80% for System Quality, 80% for Features and Functions, 87% for Security and Privacy, 80% for Usability, and 80% for User Satisfaction. Several shortcomings and challenges were also identified, such as the absence of automatic notifications when instructors post materials, assignments, and attendance records, the lack of date markers on materials posted by instructors, making it difficult for students to distinguish between new and old materials, errors and slow loading times in attendance records, limited file upload capacity, and the inability to accept certain file formats. Regular evaluations of user satisfaction are needed to further improve the system and ensure that user satisfaction is met.

Abstract. Government data centers in Indonesia face significant challenges related to data integrity and transparency, impacting policy-making accuracy, operational efficiency, and public trust. Data fragmentation, information inconsistency, and vulnerability to manipulation and cyberattacks have become crucial issues. Blockchain technology, with its fundamental characteristics such as decentralization, immutability, cryptography, and consensus mechanisms, offers innovative solutions to address these problems. This research employs a systematic literature review and conceptual analysis approach to identify how blockchain principles can be effectively applied. The proposed conceptual model, which utilizes permissioned blockchains like Hyperledger Fabric and distributed storage systems such as the InterPlanetary File System (IPFS), demonstrates significant potential in creating a secure, transparent, and auditable data ecosystem. Blockchain implementation is expected to enhance data security, strengthen auditability, prevent fraud, improve operational efficiency, securely manage digital identities, and increase data availability and redundancy. Although implementation challenges exist, including technical complexity, immature regulations, costs, and human resource gaps, global case studies and initial initiatives in Indonesia indicate significant feasibility and benefits. This report recommends a holistic approach encompassing adaptive regulatory development, infrastructure and human resource investment, phased pilot projects, and multi-stakeholder collaboration to realize blockchain's full potential in improving government data governance.   Keywords: Blockchain, Cybersecurity, Data Integrity, Data Transparency, Government Data Center

Responsive public service plays a crucial role in building public trust in police institutions, particularly in handling citizen complaints. This study aims to examine the responsiveness level of Mojokerto Police Resort in managing public complaints and the factors influencing it. The research adopts a qualitative descriptive approach, utilizing data collection methods such as in-depth interviews, direct observations, and document studies. Participants include officers from the Integrated Police Service Center (SPKT), Women and Children Service Unit (PPA), community members who have filed complaints, as well as community leaders and NGOs involved in overseeing public services. Data analysis was conducted using Miles and Huberman’s model, which includes data reduction, presentation, and conclusion drawing. The findings reveal a varied level of awareness among the community regarding complaint channels, as well as differences in ease of access. Physical channels such as suggestion boxes and direct reporting at police stations are more familiar and accessible but face challenges related to communication effectiveness and evidence collection. Meanwhile, online platforms like social media and the official website are less recognized by the public, compounded by limited digital literacy and internet access in certain areas. Furthermore, the complaint handling process needs to be straightforward, transparent, and professional to ensure that the community feels respected and confident in the service. Factors affecting responsiveness include response speed, ease of access across multiple channels, and the professionalism of officers handling cases. Perceptions of transparency and openness in procedures also significantly influence community trust. Strategically, Mojokerto Police Resort has made efforts to develop digital complaint systems and enhance staff capabilities. However, further improvements are necessary in community education and awareness programs to increase familiarity and confidence in digital channels. The significance of high responsiveness is reflected in its strategic benefits, such as early identification of security disturbances, strengthening police legitimacy, and improving overall public service quality. Effective responsiveness fosters better relationships between officers and the community, enhances trust, and contributes to a safer and more orderly environment. Therefore, adopting modern, innovative, and technology-based complaint systems should be prioritized to reform police services. Overall, the responsiveness of Mojokerto Police Resort’s complaint handling system serves as a key indicator for the success of quality and equitable public services. By improving officer professionalism, infrastructure, and community outreach, it is expected that Mojokerto Police can enhance responsiveness, reinforce community trust, and deliver excellent, transparent, and accountable services. Such efforts not only improve the police institution’s reputation but also strengthen democratic foundations and social justice in the Mojokerto region.    

The circulation of narcotics in Aceh's territorial waters is a serious problem that affects the security and welfare of the community. This research aims to analyze the role of the Directorate of Water and Air Police (DITPOLAIRUD) of the Aceh Regional Police in efforts to control narcotics through preventive and repressive measures. The research method uses a descriptive qualitative approach with data collection techniques through interviews, literature studies and document analysis. The research results show that Ditpolairud's preventive actions include routine patrols in water areas, strict monitoring of smuggling-prone routes, as well as quick response through a quick response system. However, the implementation of this action is hampered by limited resources, such as patrol boats, ship detection technology and integrated hotlines. Meanwhile, repressive measures include arresting perpetrators, investigating and compiling case files which also face challenges in terms of the availability of personnel and forensic facilities. This research concludes that optimizing the role of the Aceh Regional Police's Ditpolairud requires increased support for facilities, infrastructure and personnel training to maximize the effectiveness of countering narcotics in Aceh's territorial waters.

One of the benefits of the development of information systems is to increase effectiveness, efficiency and convenience in various aspects of technological life, especially in the scope of education, such as at SMK Negeri 1 Banyumas which implements a library visit system. But there are also challenges in its implementation, such as theft of personal data and misuse of data by irresponsible people. By conducting an information system audit, we can better understand the weaknesses of the system, for example, using COBIT 5 to view and evaluate the information system. as in the questionnaire that we distributed shows that there are 79% of students feel safe about the library visit system and 4.8% of students feel that the library visit system is not secure enough for almost the same reasons such as the authentication system that only relies on a username in the form of NIS and no password. From this data we can provide recommendations such as implementing a password system and 2-factor authentication in order to better protect personal data, files, systems, networks, and so on so that the system becomes better and more secure.

Computer assembly is the process of putting together various hardware components to ensure the computer functions optimally. To assemble a computer correctly, a deep understanding of its hardware, both logically and physically, is essential. Additionally, in order for the computer to be used for its intended purpose, software installation is required. This installation includes programs like Microsoft Windows, Microsoft Office, and others, which help adjust the software to the installed hardware and unpack compressed files. This community service activity is held at SMK Lowis Sakti, Sakra Timur, focusing on computer assembly and installation training. This process plays a vital role in the development and maintenance of efficient and reliable computer systems. A comprehensive knowledge of assembly and installation procedures is necessary to ensure optimal system performance and security. Therefore, the goal of this training is to equip SMK Lowis Sakti students with the skills to assemble and install computers independently, enabling them to apply this knowledge both in school and in the workforce.