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Indonesia has entered the era of the fourth industrial revolution. This happens with technology as a basis for human life. Everything has become limitless and limitless due to the development of digital technology. Indonesia needs several regulatory and authority improvements to be able to face the world market. The aim of this research is to find out what Indonesian industry can do to face the world market, the impact that the presence of the industrial revolution 4.0 has, and the strategies that Indonesia can prepare and carry out in facing the World Market revolution. The object of this research is industry in Indonesia to face the world market. The method used for this research is a qualitative descriptive method, data is obtained from facts about the research subject by trying to reveal it thoroughly according to the context. The results of this research are (1) Creating jobs to increase people's income, increasing people's economic programs, increasing Turnover and Digitalization of People's Markets, building/revitalizing people's markets, establishing relationships between digital markets abroad (2) The most visible impact is in terms of available work (3) Make improvements to the flow of materials and goods, improve the quality of human resources, use digital technology, harmonize rules and policies.     Bukit, M. (2014). Strategi dan inovasi pendidikan kejuruan darikompetensi ke kompetisi. Bandung: Alfabeta. Cognizant. Informed Manufacturing:     The      Next Industrial Revolution. http://www.cognizant.com/ InsightsWhitepapers/Informed-Manufacturing-TheNext-IndustrialRevolution.pdf.  Davis, N. 5 ways of understanding the Fourth Industrial Revolution. November 16, 2015. http://www.weforum.org/ agenda/2015/11/5-ways-of-understanding-thefourth-industrialrevolution. Economist          Intelligence      Unit.    From    transplants       to implants.      December        11,       2015. http://www.eiuperspectives.economist.com/healthcare/transplants-implants.   Edmon, A., & Oluiyi, A. (2014). Re-engineering technical vocationaeducation and training toward safety practice skill needs ofsawmill workers against workplace hazards in Nigeria [Versielektronik]. Journal of Education and Practice, 5 (7), 150-157.  Era Revolusi Industri 4.0: Perlu Persiapkan Literasi Data, Teknologi dan Sumber Daya Manusia. (2018). Diambil 29 Desember 2023 dari http://belmawa.ristekdikti. go.id/2018/01/17/ era-revolusiindustri-4-0-perlu-persiapkan-literasi-data-teknologi-dan-sumber-daya-manusia/ Fakta     ketergantungan            pada    teknologi         (2014). Diambil 29 Desember 2023 dari  http://www.beritasatu.com/gaya-hidup/232713-8-fakta-ketergantungan-pada-teknologi.html Hermann, M., Pentek, T., & Otto, B. (2016). Design Principles forIndustrie 4.0 Scenarios. Presented at the 49th HawaiianInternational Conference on Systems Science.  Irianto, D. (2017). Industry 4.0; The Challenges of Tomorrow.Disampaikan pada Seminar Nasional Teknik Industri, Batu-Malang.  Kagermann, H., Wahlster, W., & Helbig, J.(2013). Recommendations forImplementing the Strategic Initiative Industrie 4.0. Industrie 4.0Working Group, Germany.  Hitt, Mihael.A , Ireland, R. Duane, Robert E, Hoskinsson. 2001. Strategic Management Competitiveness and Globalization Concepts Thomson learning Asia, Singapore. Hamel Gary, Prahalad C.K. Competing For The Future. 1994. Harvard Business School Press Boston, Massachusetts. "Making Indonesia 4.0, Fokus 5 Industri Apa Saja.", https://economy.okezone.com/   read/2018/04/04/320/1881885/ making-indonesia-4-0-fokuspengembangan-5-industri-apasaja, diakses 29 Desember 2023.  "Making Indonesia 4.0: Strategi RI Masuki Revolusi Industri K-4.", http://www.kemenperin. go.id/artikel/18967/  MakingIndonesia-4.0:-Strategi-RIMasuki-Revolusi-Industri-Ke-4, diakses 3 Mei 2018.  “Menuju Revolusi Industri 4.0 Jokowi Diminta Bentuk Badan Riset Nasional”, Kompas, 29             April 2018, hal 3.  "Pemerintah Luncurkan Making 3932.", https://ekon.go.id/ 23 Hak cipta dilindungi oleh undang-undang. Dilarang mengutip atau memperbanyak sebagian atau seluruh isi tulisan ini tanpa izin penerbit. Info Singkat © 2009, Pusat Penelitian Badan Keahlian DPR RI http://puslit.dpr.go.id  ISSN 2088-2351 berita/view/pemerintahluncurkan-making.3932.html, diakses 29 Desember 2023. “Pemerintah RI dan Ceko sepakat tingkatkan Investasi Industri Dua Kali Lipat”, Tribun Bisnis,          29 Desember 2023 hal 8.  "Revolusi Industri 4.0", http://id.beritasatu.com/home/ revolusi-industri-40/145390, diakses        29 Desember 2023.  "Revolusi 4.0, Catatan Dari ISSA ICT 2018", http://id.beritasatu.com/  home/revolusi-40-         catatan-dariissa-ict-2018/174772, diakses 8 Mei 2018. "Strategi Hadapi Dampak Industri 4.0", http://id.beritasatu.com/  home/strategi-hadapi-         dampakrevolusi-industri-40/174260, diakses 2 Mei 2018.

WiFi networks are very crucial in today's corporate industry. Because the WiFi network contains the internet which acts as a data transfer and communication route to support the company's operations. PT. Bukit Baiduri Energi (PT. BBE) as a company operating in the coal mining sector relies heavily on the internet to carry out company operations. Every day there is always an exchange of data and communication from employees to monitor the process of carrying out existing tasks and work, in responding to problems faced during the internship at PT. Bukit Baiduri Energi, our team takes the right steps to find the optimal solution. The first step taken was to identify the company's needs and formulate the idea of ​​creating a web company profile as a Mikrotik Hotspot captive portal. The website development process involves utilizing HTML, CSS, and JavaScript to create an attractive appearance and ensure functionality. The results of the project during the internship were to create a web company profile as a captive portal for PT Mikrotik Hotspot. Bukit Baiduri Energy. During the internship period at PT BBE, our team succeeded in completing the captive login hotspot project on Mikrotik devices by changing the design of the hotspot login portal and adding a brief company profile page. This project provides important benefits for companies in improving the security of their Wi-Fi networks and introducing the company to users through profile pages. The result is a positive step in supporting the growth and image of companies in the coal mining sector.

Cryptography is a solution or method of information security that is good for maintaining the confidentiality and security of information, and can improve information or information security in an era of very rapid development of information technology. The rapid development of this technology, many new implications and problems arise in the delivery and communication of information, this is because everyone has easy access to the media and this affects the security of information and messages on the media. Therefore, to protect messages, we can use Caesar encryption, which is relatively easy to implement in PHP. How to apply message security in this study by designing web-based applications using the PHP and HTML programming languages. Message protection uses the Caesar encryption algorithm by changing every character of the original message into ciphertext. Characters in plain text are replaced with keys that are determined based on the number of alphabetical orders of plain text. In this way, unauthorized parties cannot read these private messages and users can interact with private messages more freely.