Cell phones have became a most important aspect of our life . We can't live without our cells . Truly cellphone has made our live easy but each thing has its own disadvantage and the cell phones have them too.Here are the main problem caused by them .So have a look at them -----
Health Hazards
A decade or so ago, when cell phones were a novelty, they had
their fair share of brickbats. The largest fear factor associated with
mobile telephony was the harmful effect of electromagnetic radi-ation. It’s a known fact that due to electromagnetic induction, a
strong electromagnetic field is created, which can cause electric
currents that may flow across an air gap to the ground, causing
sparks. These sparks can then ignite flammable materials or gases,
and can lead to an explosion or fire.
Scientific evidence for the health hazards of cell phone radia-tion is still disputed. The WHO has recommended that a precau-tionary principle be voluntarily adopted. Here, the precautionary
principle is “a risk management policy applied in circumstances
with a high degree of scientific uncertainty, reflecting the need to
take action for a potentially serious risk without awaiting the
results of scientific research.”
Ever since mobile phones were launched, numerous health
reports have been published by various institutions worldwide.
Some reports indicate that electromagnetic radiation from mobile
phones cause brain tumours and can even result in Alzheimer’s disease. On the other hand, there have been a good number of
reports indicating no health risk at all.
It cannot, however, be denied that mobile phone radiation
affects living cells. In October 2004, scientists at the Karolinska
Institute in Stockholm gave a new warning about mobile phone
radiation and brain tumours. They found that long term users of
mobile phones were four times as likely to develop growths on the
side they held the phone, and twice as likely as non-users to devel-op these benign, non-cancerous growths. They saw no increased
risk from mobile phone radiation in those who had used mobile
phones for less than 10 years. The study was of 150 mobile phone
users, compared to 60 in a control group.
However, the effects on individual users may vary depending on
the type of electromagnetic radiation. For instance, GSM and GPRS
(2.5G) phones use pulsed radiation, where the levels rise and fall very
rapidly. 3G phones on the other hand use continuous levels. Hence,
studies show varied results because they may have analysed different
types of radiation. Dr Kjell Hansson Mild in Sweden studied radiation
risk in 11,000 mobile telephone users. Symptoms such as fatigue,
headaches, and burning sensations on the skin were more common
among those who made longer mobile phone calls. Evidence from
human studies of mobile phone radiation indicates short-term
raised blood pressure and mild direct brain warming.
In all, different studies have reached contradictory conclusions.
There still persist real uncertainties about mobile phone radiation.
The health risk to an individual user from electromagnetic radia-tion may be minor, but it’s possible that some individuals may be
more prone to the side effects of radiation than others.
Nevertheless, read the user manual of any mobile phone: the
safety warnings will ask you to “switch off the phone when refu-elling.” Avoid using your phone near fuel or chemicals. Also, don’t
use your phone where there is blasting in progress, and also in a
hospital or when you are close to any medical equipment.
Driving, Riding And Calling
The greatest risk to a mobile phone
user is an accident while distracted,
particularly when driving. Don’t
drink and drive. Similarly, don’t
talk on the phone while driving.
The driver talking on a cell phone
need not be in an inebriated state -but he definitely is distracted. And
that can mean accidents.
Obviously, the same goes for people who
ride two-wheelers. In fact, two-wheeler riders face a greater risk
than do drivers of four-wheelers of losing control of their bike or
scooter while talking on the phone. Although a hands-free system
makes things easier, it does not reduce the distraction caused by
the phone call. Follow road rules while driving - your first consideration should be safety on the road.
Security Threats
Mobile spam is irritating, as you’ve noticed by now. Marketers
are resorting to text messages to target subscribers. More and
more mobile phone customers have received spam on their
phones - unsolicited marketing has reached this part of the
world as well. Some messages may carry viruses that could ren-der your phone dead: mobile phones are not immune to virus
threats. ‘Cabir’ was the first ever computer virus that infected
mobile phones. For PDAs there have been Palm viruses and also
infections on the Microsoft Pocket PC platform.
The earliest mobile phones did not have much security
designed in. Some problems were identity theft, and “scanning” -whereby third parties in the local area could intercept and eaves-drop on calls. Although more recent digital systems (such as GSM) have attempted to address these
fundamental issues, securityare resorting to text messages to target subscribers. More and
more mobile phone customers have received spam on their
phones - unsolicited marketing has reached this part of the
world as well. Some messages may carry viruses that could ren-der your phone dead: mobile phones are not immune to virus
threats. ‘Cabir’ was the first ever computer virus that infected
mobile phones. For PDAs there have been Palm viruses and also
infections on the Microsoft Pocket PC platform.
The earliest mobile phones did not have much security
designed in. Some problems were identity theft, and “scanning” -whereby third parties in the local area could intercept and eaves-drop on calls. Although more recent digital systems (such as GSM) have attempted to address these
problems persist. Vulnerabilities
(such as SMS spoofing) have been
found in many current protocols
that continue to allow the possibili-ty of eavesdropping or cloning.
Viruses and other malicious
code can spread through PDAs
and smartphones. First, the hand-set’s functioning may get impaired
by the virus. Moreover, if an infected
mobile device is used to upload data
onto a corporate network, that may be adversely affected. The dan-ger from mobile viruses may grow as the use of PDAs and smart
phones proliferates. And virus writers will certainly not spare the
mobile devices and operating systems market.
In reference to simple SMS spoofing, consider this scenario: a
cyber criminal could send you a message from your friend’s cell -a fake message that can fool the receiver into thinking it is from
the actual sender. For instance, if someone received a message
from his or her spouse that said, “Withdraw Rs 10,000 immediate-ly and deposit into my account”, he or she would first try to call
the spouse. If the spouse is not reachable, the person might end up
actually doing what the SMS said. Such scams have actually
occurred. Of course, such scenarios are contingent on a cell phone
being stolen or left unattended.
In India, SMS Spoofing of the real kind - wherein the spoofer
doesn’t even have access to the phone the SMS seems to be coming
from - was tested by the Pune-based Asian School of Cyber Laws,
which used SMS Spoofing to help investigation and law enforce-ment agencies trap terrorists and narcotics dealers.
The significant growth of SMS as form of communication has lso given rise to the reliance of law enforcement agencies in gath-ering evidence from mobile phones when a crime has been com-mitted. Many a time, the law enforcement agencies have used the
mobile phone to link a criminal to the crime committed.
To prove that a criminal could send an SMS message appearing
to come from a victim’s cellular phone without physically touch-ing the victim’s cell phone, the school recently conducted experi-ments in SMS spoofing at the national and international level. It
was able to successfully spoof SMS messages and make them
appear to come from other people’s phones. These people were
using GSM-based cellular phone services in various parts of India
and other Asian as well as African countries. Needless to say, this
experiment should be enough to convince cell phone users and
law enforcement agencies to be careful in relying upon the
authenticity of SMS messages.
Truly as i say they have became an inseparable part of our llife but as each thing has its own disadvantage if not used in a proper manner.So also please give me your views and correct me where i have done mistake .
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