Vijay Tank — Tech, Code & Game Dev

In December 2015, cybersecurity advocates identified a severe data exposure flaw on the Corporation of Chennai's official web portal, where birth and death certificates dating as far back as 1910 were accessible to the public without authentication or rate limiting. An Unprotected Query Interface Because the municipal database endpoint lacked user access controls, anyone could query arbitrary registration dates and download sensitive citizen birth records containing full names, parentage, residential addresses, and hospital records as PDF documents. A Wake-Up Call for Municipal Cybersecurity Birth records are foundational documents used for passport issuance, school admissions, and financial verification in India. The exposure underscored the critical necessity for robust access control, input validation, and security auditing across government digital service portals during India's nationwide digital transformation drive.

On December 23, 2015, New Delhi recorded its most severe air pollution levels of the year, with ambient concentrations of PM 2.5 and PM 10 escalating dramatically into the hazardous category across the National Capital Region. Alarming Particulate Concentrations Data from the System of Air Quality and Weather Forecasting and Research (SAFAR) revealed city-wide averages of 295 micrograms per cubic metre for PM 2.5 and 470 for PM 10 — vastly exceeding national safe thresholds of 60 and 100 µg/m³. Monitoring stations in Anand Vihar recorded peak PM 2.5 values exceeding 400 µg/m³. Meteorological and Regional Triggers SAFAR researchers attributed the acute spike to a combination of atmospheric temperature inversions and pollutant transport across the Indo-Gangetic Plains, exacerbated by local biomass burning for winter heating. The December 2015 pollution event served as a major catalyst for emergency public health interventions, including odd-even vehicle rationing trials in early 2016...

In December 2015, the launch of reality television star Kim Kardashian's custom sticker app, "Kimoji," triggered unprecedented traffic surges on the Apple App Store, temporarily causing search indexing and checkout hiccups across the digital storefront. A Massive Digital Merchandising Hit Priced at $1.99, the Kimoji keyboard provided a library of celebrity-themed emoji and stickers. Within hours of launch, the app climbed to the #1 spot on the App Store paid charts, reportedly processing thousands of download requests per second at its peak. The Power of Celebrity Influence on Mobile Software The viral launch illustrated the sheer economic scale of celebrity-driven mobile software in the mid-2010s. It demonstrated that direct social media promotion from high-profile creators could drive instant consumer adoption, establishing a playbook for creator-led digital merchandise and custom sticker extensions.

In December 2015, The Wall Street Journal reported that Google was developing an entirely new mobile messaging application designed to compete with WhatsApp, Facebook Messenger, and WeChat by integrating artificial intelligence chatbots directly into conversational threads. The Concept of Conversational Search Unlike traditional SMS or chat services, Google's proposed messenger allowed users to text friends while simultaneously querying AI chatbots capable of answering factual questions, checking weather forecasts, and retrieving web information without leaving the chat window. The Path to Google Allo and Assistant This initiative eventually materialized in late 2016 with the launch of Google Allo and the debut of the Google Assistant. While Allo was eventually sunset as Google unified its messaging strategy around RCS in Google Messages, the conversational AI architecture prototyped in 2015 laid the foundations for modern generative AI integrations across Google's software...

In late December 2015, Google confirmed experimental trials of a password-free account authentication system that allowed users to log into their Google accounts on desktop browsers using their smartphones as primary authentication tokens. How Smartphone Push Logins Worked Rather than typing a password, a user attempting to sign in on a computer received an instant push notification on their registered smartphone asking, "Trying to sign in?" A simple tap of confirmation on the mobile device securely authenticated the desktop session. If the phone was unavailable, users could fall back to standard password entry. Pioneering the Road to Passkeys Traditional passwords had long proven vulnerable to phishing, brute-force attacks, and credential reuse. Google's 2015 smartphone-based approval system represented an early milestone in the broader industry movement toward passwordless authentication, which has since culminated in modern FIDO2 and biometric passkey standards acr...

In December 2015, Chinese smartphone brand Gionee launched the Marathon M5 Plus in China, expanding its battery-centric smartphone lineup with a 6-inch AMOLED display and a front-mounted fingerprint sensor. Specifications Overview Display 6.0-inch Full HD (1920x1080) 2.5D AMOLED (368 ppi) Processor MediaTek MT6753 octa-core 64-bit Memory & Storage 3 GB RAM / 64 GB internal storage Battery 5,020 mAh (fast-charging support) Biometrics Front fingerprint scanner (0.38-second unlock) OS Android 5.1 Lollipop with Amigo OS 3.0 Launch Price 2,499 CNY (~Rs 25,500) Balancing Slimness and Endurance While the standard Marathon M5 featured a dual-cell 6,020 mAh battery, the M5 Plus scaled down to 5,020 mAh to maintain a slimmer profile while powering a larger 6-inch panel. Gionee claimed up to 34.5 days of standby time, targeting power users and business travelers who prioritised battery endurance above all else.

In late December 2015, Facebook began testing an upgraded local events discovery feature designed to help users find activities, concerts, social gatherings, and community events happening in their immediate geographic vicinity. Personalised Social Recommendations The feature leveraged Facebook's social graph to deliver tailored event suggestions based on past check-ins, expressed interests, page likes, and events friends were attending. Categorised filters for art, music, food, sports, and nightlife allowed users to browse upcoming weekend activities with a single tap. Competing for Local Search Intent By connecting event organizers directly with nearby audiences, Facebook sought to establish its mobile app as a daily utility for offline planning, competing against local discovery platforms like Yelp and Foursquare. The initiative helped establish Facebook Events as one of the platform's enduring standalone features.