Vendor lineage
Siemens - the 1847 telegraph startup
Werner von Siemens built the Indo-European telegraph line; the conglomerate's communications bloodline runs through EWSD, the Nokia JV, and Unify.
Siemens is the oldest company in this section by decades: an 1847 Berlin workshop whose pointer telegraph grew into a global electrical empire. Its communications lineage - telephone exchanges, the EWSD switch, Nokia Siemens Networks, and the Unify enterprise-communications line - threads through half the industry's history, while today's Siemens leads industrial automation and its networking.
The oldest company in this section began on 12 October 1847 with ten people in a Berlin back courtyard, building a telegraph that pointed a needle at letters rather than sending Morse.
In April 1870 the Indo-European line opened, and a message from London to Calcutta stopped taking thirty days and started taking twenty-eight minutes. Every other latency figure in this catalogue is a refinement of that afternoon: the problem was never speed for its own sake, it was that a decision could not be made until an answer came back, and for the whole of history before this the answer came back by ship.
The company nearly did not survive to build it. In the early 1850s the Prussian government declined to award follow-up contracts and, in Siemens's own telling, this plunged the young firm into an existential crisis. The response was to leave home: Russia, where it built a nine-thousand-kilometre state network, and England. Losing the domestic customer is what made it an international company, which is a pattern worth remembering whenever a supplier's largest account looks like security.
Two facts from the 1870s sit oddly beside the engineering and deserve recording as they are. In October 1872 the company established a pension and a widows' and orphans' fund, at a time when almost nobody did. In 1873 it moved Berlin to a nine-hour day where ten was standard, and to eight and a half in 1891. Halske, who had left in 1867 after disagreeing about how the company should be run, went on funding that pension personally.
The communications lineage is long and ends in pieces. A division formed in 1998, split in 2006, one half into the Nokia joint venture and the other into an enterprise business that passed to outside ownership. The telegraph company exited telecommunications almost exactly as telecommunications became the internet.
What it moved to is the reason it is a networking story at all. Industrial automation - controllers, drives, plant systems - is now the centre of the business, and that estate is precisely the population the access-control article describes as the hard case: equipment that cannot run an agent, frequently cannot authenticate, and cannot be taken offline to be fixed. The company that solved distance in 1870 now owns a large share of the problem that distance-solving created.
The industrial estate is also where this company met the first cyber-physical weapon, and the vendor's side of that story is the part usually left out. Stuxnet, found in 2010, was written against Siemens S7-300 and S7-400 controllers programmed through Step7, and it reached them on a USB drive carried through the door of a facility with no internet connection. Four Windows vulnerabilities got it across the engineering network. It then drove enrichment centrifuges through resonance speeds while reporting nominal figures to the operators watching. The Institute for Science and International Security estimated that around a thousand centrifuges may have been damaged.
Siemens was targeted for the ordinary reason that its controllers were what the plant ran. Being the standard in industrial control is what made the installed base a delivery mechanism, and no engineering decision by the manufacturer would have changed that.
Two details from it should outlive the incident. The malware carried a rootkit for the controller: when a monitoring tool asked what programme was loaded, it was handed clean code while the real one ran underneath. The instrument that would have revealed the problem was the instrument that had been subverted - which is the same failure the test and measurement article describes, arriving in an industrial plant.
And the remedy shows why this estate is genuinely hard rather than merely neglected. Siemens added authentication and encryption to the protocol in 2014, in the S7-1500 and S7-1200 lines. That update does not fit the older S7-300 controllers, which are the ones still installed and still exposed. The fix exists and cannot reach the equipment that needs it, because that equipment cannot be replaced cheaply and cannot be taken offline to be corrected. A plant does not stop for a patch window, and a controller that has run since before the attack was written is doing exactly what it was bought to do.
Founding stories
Siemens (Telegraphen-Bauanstalt von Siemens & Halske)
The oldest company in this section began as a telegraph startup: Werner von Siemens's pointer telegraph, built with the craftsman Johann Georg Halske in a Berlin backyard workshop in 1847. Within a generation it had strung the Indo-European telegraph line from London to Calcutta and discovered the dynamo-electric principle that made electrical engineering an industry. Siemens spent the twentieth century as Europe's electrical everything-company - and its communications bloodlines thread through half the other pages here before the company chose its modern identity: the automation of industry itself.
The timeline
- The pointer telegraph
Siemens and Halske found their Telegraphen-Bauanstalt in Berlin; the 1870 London-to-Calcutta Indo-European line - messages in minutes instead of weeks - makes the young company a global infrastructure builder.
- The dynamo
Werner von Siemens articulates the dynamo-electric principle - practical electricity generation - and the telegraph company becomes the seed of an electrical empire: power, rail, lighting, medicine.
- EWSD wires the world
The digital public exchange from Munich becomes one of the most widely deployed switching systems ever - Siemens as a first-rank telecom vendor through the fixed-line era.
- The communications retreat begins
The mobile-phone business goes to BenQ; in 2007 the carrier-networks business merges into the Nokia Siemens Networks joint venture, which Siemens exits fully in 2013 - the telecom century wound down deliberately.
- Unify departs
The enterprise-communications lineage - Siemens Enterprise Communications, renamed Unify - is sold to Atos, and passes to Mitel in 2023: the last communications bloodline leaves the house.
- The focused giant
With Siemens Energy spun off (Healthineers already public), the company completes its transformation: industrial automation, smart infrastructure, and rail - including the SCALANCE and PROFINET industrial-networking world where factory floors meet this site's subject matter.
Flagship products and solutions
- Digital IndustriesFactory automation and industrial software: SIMATIC PLCs, TIA Portal, and the Xcelerator platform.
- SCALANCE and industrial networkingSwitches, wireless, and security for the OT world - PROFINET's home turf, where networking meets the plant floor.
- Smart Infrastructure and MobilityGrid technology, buildings, and rail - the electrical-empire heritage, modernized.
Key innovations
- Electrical engineering as an industryThe dynamo-electric principle and the infrastructure ventures built on it - Siemens did not join the electrical age; it is one of the reasons the age happened.
- The disciplined exitFew giants have left a flagship industry as deliberately as Siemens left telecom - a decade-long unwinding that funded the automation identity it wears today.
Main markets
Siemens today leads industrial automation and infrastructure worldwide - and its OT-networking lines make it a neighbor of this site's world wherever a factory network meets an enterprise one.
Analyst standing
- A century-long fixture of the electrical and automation evaluations; in telecom history, the quiet co-author of the fixed-line era whose exits shaped Nokia's rise.
- Siemens's own company history: the ten-man Telegraphen-Bauanstalt von Siemens & Halske began operating on 12 October 1847 in Berlin; in 1848 it won the contract for Europe's first long-distance telegraph line, Berlin to Frankfurt, in service 1849; in 1853 the Russian government awarded it the roughly 9,000-kilometre Russian state telegraph network; the Indo-European line was inaugurated in April 1870, reducing a London to Calcutta message from 30 days to 28 minutes; in October 1872 the company created a pension, widows' and orphans' fund, and in 1873 introduced the nine-hour working day in Berlin where ten was standard, reduced again to eight and a half in 1891
- Siemens's own account of the early 1850s: the refusal of the Prussian government to award follow-up contracts plunged the young company into an existential crisis, and in response it turned to foreign markets, where opportunities in Russia and England provided fresh momentum
- Johann Georg Halske, master mechanic, co-founded the company in 1847 and was particularly involved in building the pointer telegraph, the Morse telegraph, measuring instruments, and the press that allowed wire to be insulated with a seamless coat of gutta-percha; he withdrew in 1867 over differences on company policy, remained a friend of Werner von Siemens until his death in 1890, and continued to support the pension fund financially
- Siemens Communications: founded as a division in 1998 from earlier groups tracing to the 1847 company, split on 1 October 2006 into Siemens Networks and Siemens Enterprise Communications, the latter becoming a 2008 joint venture in which Siemens held 49 per cent
- Peer-reviewed survey of operational technology security: Stuxnet, discovered in 2010, targeted Siemens S7-300 and S7-400 controllers - specifically the S7-315 and S7-417 - that ran uranium-enrichment centrifuges at Natanz; it propagated on removable USB drives, exploited four Windows zero-day vulnerabilities to cross engineering networks, and reprogrammed controller logic to drive centrifuges through resonance speeds while reporting nominal values to the operator's screen. The Institute for Science and International Security estimated in December 2010 that up to approximately 1,000 IR-1 centrifuges, about ten per cent of the operating stock, may have been damaged between November 2009 and late January 2010
- Analysis of the S7 protocol: it lacks encryption and authentication; Siemens introduced S7CommPlus in 2014 adding both through a firmware update, implemented in S7-1500 and S7-1200 controllers on firmware 4.0 and above - but the update was not compatible with older S7-300 controllers, which remain susceptible to sniffing and injection
- Technical analysis of the attack: Stuxnet used a controller rootkit that intercepted read requests for programme blocks, returning clean code to monitoring tools while the malicious code ran during normal scans; remediation requires rebuilding from known-clean backups or replacing the processor module, because conventional antivirus cannot detect or remove code from controller memory. The episode demonstrated that air-gapped networks can be breached and that controllers lacked code integrity verification, work that fed into the IEC 62443 standards